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<span>Genetic Conditions: S</span>
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<h1>Genetic Conditions: S</h1>
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<p>Explore the signs and symptoms, genetic cause, and inheritance pattern of various health conditions.</p>
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<span class='blue-label'>Other genetic conditions A-Z</span>
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<ul class="alpha-links">
<li><a href="https://medlineplus.gov/genetics/condition-0/" data-alpha="0-9">0-9</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/" data-alpha="A">A</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-b/" data-alpha="B">B</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-c/" data-alpha="C">C</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-d/" data-alpha="D">D</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-e/" data-alpha="E">E</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-f/" data-alpha="F">F</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-g/" data-alpha="G">G</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-h/" data-alpha="H">H</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-i/" data-alpha="I">I</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-j/" data-alpha="J">J</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-k/" data-alpha="K">K</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-l/" data-alpha="L">L</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-m/" data-alpha="M">M</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-n/" data-alpha="N">N</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-o/" data-alpha="O">O</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-p/" data-alpha="P">P</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-q/" data-alpha="Q">Q</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-r/" data-alpha="R">R</a></li>
<li><span class="active">S</span></li>
<li><a href="https://medlineplus.gov/genetics/condition-t/" data-alpha="T">T</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-u/" data-alpha="U">U</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-v/" data-alpha="V">V</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-w/" data-alpha="W">W</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-x/" data-alpha="X">X</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-y/" data-alpha="Y">Y</a></li>
<li><a href="https://medlineplus.gov/genetics/condition-z/" data-alpha="Z">Z</a></li>
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<section>
<ul class="withident breaklist">
<li>S-adenosylhomocysteine hydrolase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hypermethioninemia/">Hypermethioninemia</a></li>
<li>SA/CRS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/caudal-regression-syndrome/">Caudal regression syndrome</a></li>
<li>Saccharopine dehydrogenase deficiency disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hyperlysinemia/">Hyperlysinemia</a></li>
<li>Saccharopinuria, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hyperlysinemia/">Hyperlysinemia</a></li>
<li>Sacral agenesis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/caudal-regression-syndrome/">Caudal regression syndrome</a></li>
<li>Sacral defect with anterior meningocele, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/caudal-regression-syndrome/">Caudal regression syndrome</a></li>
<li>SAD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/seasonal-affective-disorder/">Seasonal affective disorder</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/saddan/">SADDAN</a></li>
<li>SADDAN dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/saddan/">SADDAN</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/saethre-chotzen-syndrome/">Saethre-Chotzen syndrome</a></li>
<li>SAHS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/obstructive-sleep-apnea/">Obstructive sleep apnea</a></li>
<li>Saldino-Mainzer dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mainzer-saldino-syndrome/">Mainzer-Saldino syndrome</a></li>
<li>Saldino-Mainzer syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mainzer-saldino-syndrome/">Mainzer-Saldino syndrome</a></li>
<li>Salih CMD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/early-onset-myopathy-with-fatal-cardiomyopathy/">Early-onset myopathy with fatal cardiomyopathy</a></li>
<li>Salih congenital muscular dystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/early-onset-myopathy-with-fatal-cardiomyopathy/">Early-onset myopathy with fatal cardiomyopathy</a></li>
<li>Salih myopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/early-onset-myopathy-with-fatal-cardiomyopathy/">Early-onset myopathy with fatal cardiomyopathy</a></li>
<li>San Luis Valley syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/recombinant-8-syndrome/">Recombinant 8 syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sandhoff-disease/">Sandhoff disease</a></li>
<li>Sandhoff-Jatzkewitz-Pilz disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sandhoff-disease/">Sandhoff disease</a></li>
<li>SANDO, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-neuropathy-spectrum/">Ataxia neuropathy spectrum</a></li>
<li>Sanfilippo syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mucopolysaccharidosis-type-iii/">Mucopolysaccharidosis type III</a></li>
<li>Santavuori-Haltia disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln1-disease/">CLN1 disease</a></li>
<li>Sarcoma family syndrome of Li and Fraumeni, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/li-fraumeni-syndrome/">Li-Fraumeni syndrome</a></li>
<li>Sarcoma, breast, leukemia, and adrenal gland (SBLA) syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/li-fraumeni-syndrome/">Li-Fraumeni syndrome</a></li>
<li>SAS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/satb2-associated-syndrome/">SATB2-associated syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/satb2-associated-syndrome/">SATB2-associated syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/saul-wilson-syndrome/">Saul-Wilson syndrome</a></li>
<li>SAVI, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sting-associated-vasculopathy-with-onset-in-infancy/">STING-associated vasculopathy with onset in infancy</a></li>
<li>Say-Barber-Biesecker-Young-Simpson syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ohdo-syndrome-say-barber-biesecker-young-simpson-variant/">Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant</a></li>
<li>Say-Barber-Biesecker-Young-Simpson variant of Ohdo syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ohdo-syndrome-say-barber-biesecker-young-simpson-variant/">Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant</a></li>
<li>SBBYS variant of Ohdo syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ohdo-syndrome-say-barber-biesecker-young-simpson-variant/">Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant</a></li>
<li>SBBYSS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ohdo-syndrome-say-barber-biesecker-young-simpson-variant/">Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant</a></li>
<li>SBCADD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-branched-chain-acyl-coa-dehydrogenase-deficiency/">Short/branched chain acyl-CoA dehydrogenase deficiency</a></li>
<li>SBH, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/subcortical-band-heterotopia/">Subcortical band heterotopia</a></li>
<li>SBLA syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/li-fraumeni-syndrome/">Li-Fraumeni syndrome</a></li>
<li>SBMA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-and-bulbar-muscular-atrophy/">Spinal and bulbar muscular atrophy</a></li>
<li>SC phocomelia syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/roberts-syndrome/">Roberts syndrome</a></li>
<li>SC pseudothalidomide syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/roberts-syndrome/">Roberts syndrome</a></li>
<li>SC syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/roberts-syndrome/">Roberts syndrome</a></li>
<li>SCA1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-1/">Spinocerebellar ataxia type 1</a></li>
<li>SCA2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-2/">Spinocerebellar ataxia type 2</a></li>
<li>SCA3, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-3/">Spinocerebellar ataxia type 3</a></li>
<li>SCA36, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-36/">Spinocerebellar ataxia type 36</a></li>
<li>SCA6, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-6/">Spinocerebellar ataxia type 6</a></li>
<li>SCAD deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-chain-acyl-coa-dehydrogenase-deficiency/">Short-chain acyl-CoA dehydrogenase deficiency</a></li>
<li>SCADH deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-chain-acyl-coa-dehydrogenase-deficiency/">Short-chain acyl-CoA dehydrogenase deficiency</a></li>
<li>SCAE, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/myoclonic-epilepsy-myopathy-sensory-ataxia/">Myoclonic epilepsy myopathy sensory ataxia</a></li>
<li>Scalp defect congenital, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nonsyndromic-aplasia-cutis-congenita/">Nonsyndromic aplasia cutis congenita</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/scalp-ear-nipple-syndrome/">Scalp-ear-nipple syndrome</a></li>
<li>SCAN2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-with-oculomotor-apraxia/">Ataxia with oculomotor apraxia</a></li>
<li>SCAR1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-with-oculomotor-apraxia/">Ataxia with oculomotor apraxia</a></li>
<li>SCCHN, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/head-and-neck-squamous-cell-carcinoma/">Head and neck squamous cell carcinoma</a></li>
<li>SCD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sickle-cell-disease/">Sickle cell disease</a></li>
<li>SCDO, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylocostal-dysostosis/">Spondylocostal dysostosis</a></li>
<li>SCHAD deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/3-hydroxyacyl-coa-dehydrogenase-deficiency/">3-hydroxyacyl-CoA dehydrogenase deficiency</a></li>
<li>Scheie syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mucopolysaccharidosis-type-i/">Mucopolysaccharidosis type I</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schimke-immuno-osseous-dysplasia/">Schimke immuno-osseous dysplasia</a></li>
<li>Schimke immunoosseous dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schimke-immuno-osseous-dysplasia/">Schimke immuno-osseous dysplasia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schindler-disease/">Schindler disease</a></li>
<li>Schinzel acrocallosal syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/acrocallosal-syndrome/">Acrocallosal syndrome</a></li>
<li>Schinzel Giedion syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schinzel-giedion-syndrome/">Schinzel-Giedion syndrome</a></li>
<li>Schinzel syndrome 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/acrocallosal-syndrome/">Acrocallosal syndrome</a></li>
<li>Schinzel-Giedion midface retraction syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schinzel-giedion-syndrome/">Schinzel-Giedion syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schinzel-giedion-syndrome/">Schinzel-Giedion syndrome</a></li>
<li>Schizo-affective psychosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li>Schizo-affective type schizophrenia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li>Schizoaffective psychosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li>Schizoaffective schizophrenia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schizophrenia/">Schizophrenia</a></li>
<li>Schizophrenia, schizo-affective type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li>Schizophreniform psychosis, affective type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schizoaffective-disorder/">Schizoaffective disorder</a></li>
<li>Schuurs-Hoeijmakers syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pacs1-syndrome/">PACS1 syndrome</a></li>
<li>Schwannoma, acoustic, bilateral, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/neurofibromatosis-type-2/">Neurofibromatosis type 2</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schwannomatosis/">Schwannomatosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>Schwartz-Jampel syndrome, type 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>Schwartz-Jampel type 2 syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>Schwartz-Jampel-Aberfeld syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>SCID due to absence of class II HLA antigens, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bare-lymphocyte-syndrome-type-ii/">Bare lymphocyte syndrome type II</a></li>
<li>SCID due to ADA deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/adenosine-deaminase-deficiency/">Adenosine deaminase deficiency</a></li>
<li>SCID, HLA class 2-negative, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bare-lymphocyte-syndrome-type-ii/">Bare lymphocyte syndrome type II</a></li>
<li>SCID, HLA class II-negative, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bare-lymphocyte-syndrome-type-ii/">Bare lymphocyte syndrome type II</a></li>
<li>SCIDX1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-severe-combined-immunodeficiency/">X-linked severe combined immunodeficiency</a></li>
<li>Sclerocystic ovarian degeneration, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/polycystic-ovary-syndrome/">Polycystic ovary syndrome</a></li>
<li>Sclerocystic ovaries, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/polycystic-ovary-syndrome/">Polycystic ovary syndrome</a></li>
<li>Sclerocystic ovary syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/polycystic-ovary-syndrome/">Polycystic ovary syndrome</a></li>
<li>Sclerosing cholangitis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/primary-sclerosing-cholangitis/">Primary sclerosing cholangitis</a></li>
<li>Sclerosis tuberosa, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/tuberous-sclerosis-complex/">Tuberous sclerosis complex</a></li>
<li>Sclerosteosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sost-related-sclerosing-bone-dysplasia/">SOST-related sclerosing bone dysplasia</a></li>
<li>SCLH, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/subcortical-band-heterotopia/">Subcortical band heterotopia</a></li>
<li>SCN8A encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/scn8a-related-epilepsy-with-encephalopathy/">SCN8A-related epilepsy with encephalopathy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/scn8a-related-epilepsy-with-encephalopathy/">SCN8A-related epilepsy with encephalopathy</a></li>
<li>SCOT deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/succinyl-coa3-ketoacid-coa-transferase-deficiency/">Succinyl-CoA:3-ketoacid CoA transferase deficiency</a></li>
<li>SCS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/saethre-chotzen-syndrome/">Saethre-Chotzen syndrome</a></li>
<li>SCT, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylocarpotarsal-synostosis-syndrome/">Spondylocarpotarsal synostosis syndrome</a></li>
<li>SCT syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylocarpotarsal-synostosis-syndrome/">Spondylocarpotarsal synostosis syndrome</a></li>
<li>SD/THE, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/trichohepatoenteric-syndrome/">Trichohepatoenteric syndrome</a></li>
<li>SDAT, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/alzheimers-disease/">Alzheimer&#x27;s disease</a></li>
<li>SDS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/multiple-system-atrophy/">Multiple system atrophy</a></li>
<li>SDS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li>SDYS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>Seasickness, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/motion-sickness/">Motion sickness</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/seasonal-affective-disorder/">Seasonal affective disorder</a></li>
<li>Seasonal depression, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/seasonal-affective-disorder/">Seasonal affective disorder</a></li>
<li>Seasonal mood disorder, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/seasonal-affective-disorder/">Seasonal affective disorder</a></li>
<li>Sebocystomatosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/steatocystoma-multiplex/">Steatocystoma multiplex</a></li>
<li>Secreto-inhibitor-xerodermostenosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-syndrome/">Sjögren syndrome</a></li>
<li>SED congenita, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>SED tarda, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-spondyloepiphyseal-dysplasia-tarda/">X-linked spondyloepiphyseal dysplasia tarda</a></li>
<li>SED with luxations, CHST3 type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/chst3-related-skeletal-dysplasia/">CHST3-related skeletal dysplasia</a></li>
<li>SED with marked metaphyseal changes, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-marked-metaphyseal-changes/">Spondyloepiphyseal dysplasia with marked metaphyseal changes</a></li>
<li>SED with metatarsal shortening, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-metatarsal-shortening/">Spondyloepiphyseal dysplasia with metatarsal shortening</a></li>
<li>SED with metatarsal shortening, COL2A1-related, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-metatarsal-shortening/">Spondyloepiphyseal dysplasia with metatarsal shortening</a></li>
<li>SED, congenital type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>SED, Omani type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/chst3-related-skeletal-dysplasia/">CHST3-related skeletal dysplasia</a></li>
<li>SEDC, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>SEDc, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>Sedlackova syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/22q112-deletion-syndrome/">22q11.2 deletion syndrome</a></li>
<li>Seemanova syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nijmegen-breakage-syndrome/">Nijmegen breakage syndrome</a></li>
<li>Seip syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/congenital-generalized-lipodystrophy/">Congenital generalized lipodystrophy</a></li>
<li>Seitelberger disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/infantile-neuroaxonal-dystrophy/">Infantile neuroaxonal dystrophy</a></li>
<li>Seitelberger&#x27;s disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/infantile-neuroaxonal-dystrophy/">Infantile neuroaxonal dystrophy</a></li>
<li>Selective T-cell defect, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/zap70-related-severe-combined-immunodeficiency/">ZAP70-related severe combined immunodeficiency</a></li>
<li>SEN syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/scalp-ear-nipple-syndrome/">Scalp-ear-nipple syndrome</a></li>
<li>SENDA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/beta-propeller-protein-associated-neurodegeneration/">Beta-propeller protein-associated neurodegeneration</a></li>
<li>Senior-Loken syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/senior-loken-syndrome/">Senior-Løken syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/senior-loken-syndrome/">Senior-Løken syndrome</a></li>
<li>SENS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/scalp-ear-nipple-syndrome/">Scalp-ear-nipple syndrome</a></li>
<li>Sensenbrenner syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cranioectodermal-dysplasia/">Cranioectodermal dysplasia</a></li>
<li>Sensorineural deafness and infertility, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/deafness-infertility-syndrome/">Deafness-infertility syndrome</a></li>
<li>Sensorineural deafness and male infertility, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/deafness-infertility-syndrome/">Deafness-infertility syndrome</a></li>
<li>Sensorineural deafness-imperforate anus-hypoplastic thumbs syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/townes-brocks-syndrome/">Townes-Brocks Syndrome</a></li>
<li>Sensory ataxia neuropathy dysarthria and ophthalmoplegia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-neuropathy-spectrum/">Ataxia neuropathy spectrum</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sepiapterin-reductase-deficiency/">Sepiapterin reductase deficiency</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/septo-optic-dysplasia/">Septo-optic dysplasia</a></li>
<li>Septooptic dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/septo-optic-dysplasia/">Septo-optic dysplasia</a></li>
<li>SERAC1 defect, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/megdel-syndrome/">MEGDEL syndrome</a></li>
<li>Serpentine fibula-polycystic kidney syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hajdu-cheney-syndrome/">Hajdu-Cheney syndrome</a></li>
<li>Serum prothrombin conversion accelerator deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/factor-vii-deficiency/">Factor VII deficiency</a></li>
<li>SETBP1 disorder, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>SETBP1 LoF syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>SETBP1 loss of function syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>SETBP1 related developmental delay, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>SETBP1-related disorder, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>SETBP1-related intellectual disability, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/setbp1-haploinsufficiency-disorder/">SETBP1 haploinsufficiency disorder</a></li>
<li>Severe achondroplasia with developmental delay and acanthosis nigricans, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/saddan/">SADDAN</a></li>
<li>Severe combined immunodeficiency due to absent class II human leukocyte antigens, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bare-lymphocyte-syndrome-type-ii/">Bare lymphocyte syndrome type II</a></li>
<li>Severe combined immunodeficiency due to ADA deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/adenosine-deaminase-deficiency/">Adenosine deaminase deficiency</a></li>
<li>Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-negative, due to adenosine deaminase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/adenosine-deaminase-deficiency/">Adenosine deaminase deficiency</a></li>
<li>Severe combined immunodeficiency, HLA class II-negative, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bare-lymphocyte-syndrome-type-ii/">Bare lymphocyte syndrome type II</a></li>
<li>Severe congenital encephalopathy due to MECP2 mutation, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mecp2-related-severe-neonatal-encephalopathy/">MECP2-related severe neonatal encephalopathy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/severe-congenital-neutropenia/">Severe congenital neutropenia</a></li>
<li>Severe GH insensitivity, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/laron-syndrome/">Laron syndrome</a></li>
<li>Severe infantile axonal neuropathy with respiratory failure, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-respiratory-distress-type-1/">Spinal muscular atrophy with respiratory distress type 1</a></li>
<li>Severe infantile genetic neutropenia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/severe-congenital-neutropenia/">Severe congenital neutropenia</a></li>
<li>Severe neonatal encephalopathy due to MECP2 mutations, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mecp2-related-severe-neonatal-encephalopathy/">MECP2-related severe neonatal encephalopathy</a></li>
<li>Severe neonatal hypotonia-seizures-encephalopathy syndrome due to 5q31.3 microdeletion, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/5q313-microdeletion-syndrome/">5q31.3 microdeletion syndrome</a></li>
<li>Severe susceptibility to EBV infection, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-lymphoproliferative-disease/">X-linked lymphoproliferative disease</a></li>
<li>Severe susceptibility to infectious mononucleosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-lymphoproliferative-disease/">X-linked lymphoproliferative disease</a></li>
<li>Sezary erythroderma, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sezary-syndrome/">Sézary syndrome</a></li>
<li>Sezary syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sezary-syndrome/">Sézary syndrome</a></li>
<li>Sezary&#x27;s lymphoma, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sezary-syndrome/">Sézary syndrome</a></li>
<li>SFN, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/small-fiber-neuropathy/">Small fiber neuropathy</a></li>
<li>SFNP, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/small-fiber-neuropathy/">Small fiber neuropathy</a></li>
<li>SFPKS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hajdu-cheney-syndrome/">Hajdu-Cheney syndrome</a></li>
<li>SGBS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>SGBS1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>Shabbir syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/laryngo-onycho-cutaneous-syndrome/">Laryngo-onycho-cutaneous syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sheldon-hall-syndrome/">Sheldon-Hall syndrome</a></li>
<li>SHINE syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/dlg4-related-synaptopathy/">DLG4-related synaptopathy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/shingles/">Shingles</a></li>
<li>SHM, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sporadic-hemiplegic-migraine/">Sporadic hemiplegic migraine</a></li>
<li>SHMS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pacs1-syndrome/">PACS1 syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/short-qt-syndrome/">Short QT syndrome</a></li>
<li>Short stature, characteristic facies, macrodontia, mental retardation, and skeletal anomalies, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/kbg-syndrome/">KBG syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/short-stature-hyperextensibility-hernia-ocular-depression-rieger-anomaly-and-teething-delay/">Short stature, hyperextensibility, hernia, ocular depression, Rieger anomaly, and teething delay</a></li>
<li>Short stature-characteristic facies-mental retardation-macrodontia-skeletal anomalies syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/kbg-syndrome/">KBG syndrome</a></li>
<li>Short stature-hyperextensibility-Rieger anomaly-teething delay, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-stature-hyperextensibility-hernia-ocular-depression-rieger-anomaly-and-teething-delay/">Short stature, hyperextensibility, hernia, ocular depression, Rieger anomaly, and teething delay</a></li>
<li>Short stature-onychodysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/coffin-siris-syndrome/">Coffin-Siris syndrome</a></li>
<li>SHORT syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-stature-hyperextensibility-hernia-ocular-depression-rieger-anomaly-and-teething-delay/">Short stature, hyperextensibility, hernia, ocular depression, Rieger anomaly, and teething delay</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/short-chain-acyl-coa-dehydrogenase-deficiency/">Short-chain acyl-CoA dehydrogenase deficiency</a></li>
<li>Short-chain acyl-coenzyme A dehydrogenase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-chain-acyl-coa-dehydrogenase-deficiency/">Short-chain acyl-CoA dehydrogenase deficiency</a></li>
<li>Short-rib thoracic dysplasia 9, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mainzer-saldino-syndrome/">Mainzer-Saldino syndrome</a></li>
<li>Short-sighted, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nearsightedness/">Nearsightedness</a></li>
<li>Short-sightedness, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nearsightedness/">Nearsightedness</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/short-branched-chain-acyl-coa-dehydrogenase-deficiency/">Short/branched chain acyl-CoA dehydrogenase deficiency</a></li>
<li>Short/branched-chain acyl-CoA dehydrogenase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-branched-chain-acyl-coa-dehydrogenase-deficiency/">Short/branched chain acyl-CoA dehydrogenase deficiency</a></li>
<li>Shoulder girdle neuropathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-neuralgic-amyotrophy/">Hereditary neuralgic amyotrophy</a></li>
<li>Shprintzen syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/22q112-deletion-syndrome/">22q11.2 deletion syndrome</a></li>
<li>Shprintzen-Goldberg craniosynostosis syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shprintzen-goldberg-syndrome/">Shprintzen-Goldberg syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/shprintzen-goldberg-syndrome/">Shprintzen-Goldberg syndrome</a></li>
<li>SHS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sheldon-hall-syndrome/">Sheldon-Hall syndrome</a></li>
<li>Shwachman syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li>Shwachman-Bodian syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li>Shwachman-Bodian-Diamond syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li>Shwachman-Diamond-Oski Syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/shwachman-diamond-syndrome/">Shwachman-Diamond syndrome</a></li>
<li>Shy&#x27;s disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/central-core-disease/">Central core disease</a></li>
<li>Shy-Drager syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/multiple-system-atrophy/">Multiple system atrophy</a></li>
<li>Shy-Magee syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/central-core-disease/">Central core disease</a></li>
<li>SI deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/congenital-sucrase-isomaltase-deficiency/">Congenital sucrase-isomaltase deficiency</a></li>
<li>Sialic acid storage disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/free-sialic-acid-storage-disorder/">Free sialic acid storage disorder</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sialidosis/">Sialidosis</a></li>
<li>Sialolipidosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mucolipidosis-type-iv/">Mucolipidosis type IV</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sialuria/">Sialuria</a></li>
<li>Sialuria, French type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sialuria/">Sialuria</a></li>
<li>SIANRF, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-respiratory-distress-type-1/">Spinal muscular atrophy with respiratory distress type 1</a></li>
<li>Sicca syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-syndrome/">Sjögren syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sick-sinus-syndrome/">Sick sinus syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sickle-cell-disease/">Sickle cell disease</a></li>
<li>Sickle cell disorders, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sickle-cell-disease/">Sickle cell disease</a></li>
<li>Sickling disorder due to hemoglobin S, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sickle-cell-disease/">Sickle cell disease</a></li>
<li>SIDDT, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sudden-infant-death-with-dysgenesis-of-the-testes-syndrome/">Sudden infant death with dysgenesis of the testes syndrome</a></li>
<li>Siderius X-linked mental retardation syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-intellectual-disability-siderius-type/">X-linked intellectual disability, Siderius type</a></li>
<li>Siderius-Hamel syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-intellectual-disability-siderius-type/">X-linked intellectual disability, Siderius type</a></li>
<li>Sideroblastic anemia with B-cell immunodeficiency, periodic fevers, and developmental delay, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/trnt1-deficiency/">TRNT1 deficiency</a></li>
<li>Siegal-Cattan-Mamou disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/familial-mediterranean-fever/">Familial Mediterranean fever</a></li>
<li>SIFD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/trnt1-deficiency/">TRNT1 deficiency</a></li>
<li>Silver spastic paraplegia syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/silver-syndrome/">Silver syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/silver-syndrome/">Silver syndrome</a></li>
<li>Silver-Russell dwarfism, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/russell-silver-syndrome/">Russell-Silver syndrome</a></li>
<li>Silver-Russell syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/russell-silver-syndrome/">Russell-Silver syndrome</a></li>
<li>Simpson dysplasia syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>Simpson syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>Simpson-Golabi-Behmel syndrome type 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/simpson-golabi-behmel-syndrome/">Simpson-Golabi-Behmel syndrome</a></li>
<li>Sinus node disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sick-sinus-syndrome/">Sick sinus syndrome</a></li>
<li>Sinus node dysfunction, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sick-sinus-syndrome/">Sick sinus syndrome</a></li>
<li>SIOD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schimke-immuno-osseous-dysplasia/">Schimke immuno-osseous dysplasia</a></li>
<li>Sitosterolaemia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sitosterolemia/">Sitosterolemia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sitosterolemia/">Sitosterolemia</a></li>
<li>Situs ambiguus, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/heterotaxy-syndrome/">Heterotaxy syndrome</a></li>
<li>Situs ambiguus viscerum, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/heterotaxy-syndrome/">Heterotaxy syndrome</a></li>
<li>SJA syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>Sjogren&#x27;s syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-syndrome/">Sjögren syndrome</a></li>
<li>Sjogren-Gougerot syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-syndrome/">Sjögren syndrome</a></li>
<li>Sjogren-Larsson syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-larsson-syndrome/">Sjögren-Larsson syndrome</a></li>
<li>SJS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>SJS1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schwartz-jampel-syndrome/">Schwartz-Jampel syndrome</a></li>
<li>SJS2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sjogren-syndrome/">Sjögren syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sjogren-larsson-syndrome/">Sjögren-Larsson syndrome</a></li>
<li>Skeleton-skin-brain syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/saddan/">SADDAN</a></li>
<li>SKS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/smith-kingsmore-syndrome/">Smith-Kingsmore syndrome</a></li>
<li>SLC29A3 disorder, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/histiocytosis-lymphadenopathy-plus-syndrome/">Histiocytosis-lymphadenopathy plus syndrome</a></li>
<li>SLC29A3 spectrum disorder, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/histiocytosis-lymphadenopathy-plus-syndrome/">Histiocytosis-lymphadenopathy plus syndrome</a></li>
<li>SLC35A2-CDG, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/slc35a2-congenital-disorder-of-glycosylation/">SLC35A2-congenital disorder of glycosylation</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/slc35a2-congenital-disorder-of-glycosylation/">SLC35A2-congenital disorder of glycosylation</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/slc4a1-associated-distal-renal-tubular-acidosis/">SLC4A1-associated distal renal tubular acidosis</a></li>
<li>SLC6A8 deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-creatine-deficiency/">X-linked creatine deficiency</a></li>
<li>SLC6A8-related creatine transporter deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-creatine-deficiency/">X-linked creatine deficiency</a></li>
<li>SLE, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-lupus-erythematosus/">Systemic lupus erythematosus</a></li>
<li>Sleep apnea hypopnea syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/obstructive-sleep-apnea/">Obstructive sleep apnea</a></li>
<li>Sleep apnea syndrome, obstructive, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/obstructive-sleep-apnea/">Obstructive sleep apnea</a></li>
<li>Sleep apnea, obstructive, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/obstructive-sleep-apnea/">Obstructive sleep apnea</a></li>
<li>Sleep apnea/hypopnea syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/obstructive-sleep-apnea/">Obstructive sleep apnea</a></li>
<li>sleep disturbances, hypotonia, intellectual disability, neurologic disorder, and epilepsy syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/dlg4-related-synaptopathy/">DLG4-related synaptopathy</a></li>
<li>SLO syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/smith-lemli-opitz-syndrome/">Smith-Lemli-Opitz syndrome</a></li>
<li>SLOS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/smith-lemli-opitz-syndrome/">Smith-Lemli-Opitz syndrome</a></li>
<li>SLS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sjogren-larsson-syndrome/">Sjögren-Larsson syndrome</a></li>
<li>Sly Syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mucopolysaccharidosis-type-vii/">Mucopolysaccharidosis type VII</a></li>
<li>SMA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li>SMA-associated SMA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li>SMA-LED, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li>SMA-PME, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-progressive-myoclonic-epilepsy/">Spinal muscular atrophy with progressive myoclonic epilepsy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/small-fiber-neuropathy/">Small fiber neuropathy</a></li>
<li>Small nerve fiber neuropathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/small-fiber-neuropathy/">Small fiber neuropathy</a></li>
<li>SMAPME, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-progressive-myoclonic-epilepsy/">Spinal muscular atrophy with progressive myoclonic epilepsy</a></li>
<li>SMARCAL1-related immuno-osseous dysplasia (Schimke type), <i>see</i> <a href="https://medlineplus.gov/genetics/condition/schimke-immuno-osseous-dysplasia/">Schimke immuno-osseous dysplasia</a></li>
<li>SMARD1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-respiratory-distress-type-1/">Spinal muscular atrophy with respiratory distress type 1</a></li>
<li>SMAX2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-infantile-spinal-muscular-atrophy/">X-linked infantile spinal muscular atrophy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/smith-kingsmore-syndrome/">Smith-Kingsmore syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/smith-lemli-opitz-syndrome/">Smith-Lemli-Opitz syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/smith-magenis-syndrome/">Smith-Magenis syndrome</a></li>
<li>SMS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/smith-magenis-syndrome/">Smith-Magenis syndrome</a></li>
<li>SND, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sick-sinus-syndrome/">Sick sinus syndrome</a></li>
<li>Sneddon syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/adenosine-deaminase-2-deficiency/">Adenosine deaminase 2 deficiency</a></li>
<li>SNIBCPS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/snijders-blok-campeau-syndrome/">Snijders Blok-Campeau syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/snijders-blok-campeau-syndrome/">Snijders Blok-Campeau syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/snyder-robinson-syndrome/">Snyder-Robinson syndrome</a></li>
<li>Snyder-Robinson X-linked mental retardation syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/snyder-robinson-syndrome/">Snyder-Robinson syndrome</a></li>
<li>SOD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/septo-optic-dysplasia/">Septo-optic dysplasia</a></li>
<li>Sodium channel myotonia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/potassium-aggravated-myotonia/">Potassium-aggravated myotonia</a></li>
<li>Sohar-Crisponi syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cold-induced-sweating-syndrome/">Cold-induced sweating syndrome</a></li>
<li>Somerville-Van der Aa syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/7q1123-duplication-syndrome/">7q11.23 duplication syndrome</a></li>
<li>SOST sclerosing bone dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sost-related-sclerosing-bone-dysplasia/">SOST-related sclerosing bone dysplasia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sost-related-sclerosing-bone-dysplasia/">SOST-related sclerosing bone dysplasia</a></li>
<li>Sotos sequence, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sotos-syndrome/">Sotos syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sotos-syndrome/">Sotos syndrome</a></li>
<li>Sotos&#x27; syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sotos-syndrome/">Sotos syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sox2-anophthalmia-syndrome/">SOX2 anophthalmia syndrome</a></li>
<li>SOX2-related eye disorders, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sox2-anophthalmia-syndrome/">SOX2 anophthalmia syndrome</a></li>
<li>SpA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ankylosing-spondylitis/">Ankylosing spondylitis</a></li>
<li>Spasm of eyelids, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/benign-essential-blepharospasm/">Benign essential blepharospasm</a></li>
<li>Spastic ataxia of Charlevoix-Saguenay, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-recessive-spastic-ataxia-of-charlevoix-saguenay/">Autosomal recessive spastic ataxia of Charlevoix-Saguenay</a></li>
<li>Spastic ataxia, Charlevoix-Saguenay type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-recessive-spastic-ataxia-of-charlevoix-saguenay/">Autosomal recessive spastic ataxia of Charlevoix-Saguenay</a></li>
<li>Spastic paraparesis, childhood-onset, with distal muscle wasting, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/troyer-syndrome/">Troyer syndrome</a></li>
<li>Spastic paraplegia 17, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/silver-syndrome/">Silver syndrome</a></li>
<li>Spastic paraplegia 2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-2/">Spastic paraplegia type 2</a></li>
<li>Spastic paraplegia 20, autosomal recessive, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/troyer-syndrome/">Troyer syndrome</a></li>
<li>Spastic paraplegia 3, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-3a/">Spastic paraplegia type 3A</a></li>
<li>Spastic paraplegia 31, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-31/">Spastic paraplegia type 31</a></li>
<li>Spastic paraplegia 35, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/fatty-acid-hydroxylase-associated-neurodegeneration/">Fatty acid hydroxylase-associated neurodegeneration</a></li>
<li>Spastic paraplegia 3A, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-3a/">Spastic paraplegia type 3A</a></li>
<li>Spastic paraplegia 4, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-4/">Spastic paraplegia type 4</a></li>
<li>Spastic paraplegia 49, autosomal recessive, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-49/">Spastic paraplegia type 49</a></li>
<li>Spastic paraplegia 5A, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-5a/">Spastic paraplegia type 5A</a></li>
<li>Spastic paraplegia 7, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-7/">Spastic paraplegia type 7</a></li>
<li>Spastic paraplegia 8, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-8/">Spastic paraplegia type 8</a></li>
<li>Spastic paraplegia and retinal degeneration, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-15/">Spastic paraplegia type 15</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-11/">Spastic paraplegia type 11</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-15/">Spastic paraplegia type 15</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-2/">Spastic paraplegia type 2</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-31/">Spastic paraplegia type 31</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-3a/">Spastic paraplegia type 3A</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-4/">Spastic paraplegia type 4</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-49/">Spastic paraplegia type 49</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-5a/">Spastic paraplegia type 5A</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-7/">Spastic paraplegia type 7</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-8/">Spastic paraplegia type 8</a></li>
<li>Spastic paraplegia with amyotrophy of hands and feet, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/silver-syndrome/">Silver syndrome</a></li>
<li>Spastic paraplegia, autosomal recessive, Troyer type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/troyer-syndrome/">Troyer syndrome</a></li>
<li>Speech and language disorder with orofacial dyspraxia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/foxp2-related-speech-and-language-disorder/">FOXP2-related speech and language disorder</a></li>
<li>Speech-language disorder 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/foxp2-related-speech-and-language-disorder/">FOXP2-related speech and language disorder</a></li>
<li>SPENCDI, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloenchondrodysplasia-with-immune-dysregulation/">Spondyloenchondrodysplasia with immune dysregulation</a></li>
<li>Spenlic hypoplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/isolated-congenital-asplenia/">Isolated congenital asplenia</a></li>
<li>Spermatogenic failure 5, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/macrozoospermia/">Macrozoospermia</a></li>
<li>Spermatogenic failure 9, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/globozoospermia/">Globozoospermia</a></li>
<li>Spermatogenic failure, Y-linked, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/y-chromosome-infertility/">Y chromosome infertility</a></li>
<li>Spermine synthase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/snyder-robinson-syndrome/">Snyder-Robinson syndrome</a></li>
<li>SPG11-related hereditary spastic paraplegia with thin corpus callosum, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-11/">Spastic paraplegia type 11</a></li>
<li>SPG15, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-15/">Spastic paraplegia type 15</a></li>
<li>SPG17, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/silver-syndrome/">Silver syndrome</a></li>
<li>SPG20, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/troyer-syndrome/">Troyer syndrome</a></li>
<li>SPG31, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-31/">Spastic paraplegia type 31</a></li>
<li>SPG3A, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-3a/">Spastic paraplegia type 3A</a></li>
<li>SPG4, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-4/">Spastic paraplegia type 4</a></li>
<li>SPG49, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-49/">Spastic paraplegia type 49</a></li>
<li>SPG5A, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-5a/">Spastic paraplegia type 5A</a></li>
<li>SPG8, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spastic-paraplegia-type-8/">Spastic paraplegia type 8</a></li>
<li>Spherocytic anemia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-spherocytosis/">Hereditary spherocytosis</a></li>
<li>Spherocytosis, type 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-spherocytosis/">Hereditary spherocytosis</a></li>
<li>Spherophakia-brachymorphia syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/weill-marchesani-syndrome/">Weill-Marchesani syndrome</a></li>
<li>Sphingolipidosis, Tay-Sachs, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/tay-sachs-disease/">Tay-Sachs disease</a></li>
<li>Sphingomyelin lipidosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/niemann-pick-disease/">Niemann-Pick disease</a></li>
<li>Sphingomyelin/cholesterol lipidosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/niemann-pick-disease/">Niemann-Pick disease</a></li>
<li>Sphingomyelinase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/niemann-pick-disease/">Niemann-Pick disease</a></li>
<li>Spielmeyer-Vogt disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln3-disease/">CLN3 disease</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spina-bifida/">Spina bifida</a></li>
<li>Spinal amyotrophies, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li>Spinal amyotrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinal-and-bulbar-muscular-atrophy/">Spinal and bulbar muscular atrophy</a></li>
<li>Spinal dysraphism, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spina-bifida/">Spina bifida</a></li>
<li>Spinal muscle degeneration, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li>Spinal muscle wasting, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy/">Spinal muscular atrophy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-progressive-myoclonic-epilepsy/">Spinal muscular atrophy with progressive myoclonic epilepsy</a></li>
<li>Spinal muscular atrophy with respiratory distress, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-respiratory-distress-type-1/">Spinal muscular atrophy with respiratory distress type 1</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-respiratory-distress-type-1/">Spinal muscular atrophy with respiratory distress type 1</a></li>
<li>Spinal muscular atrophy, childhood, proximal, autosomal dominant, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li>Spinal muscular atrophy, distal type V, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/distal-hereditary-motor-neuropathy-type-v/">Distal hereditary motor neuropathy, type V</a></li>
<li>Spinal muscular atrophy, distal, with upper limb predominance, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/distal-hereditary-motor-neuropathy-type-v/">Distal hereditary motor neuropathy, type V</a></li>
<li>Spinal muscular atrophy, infantile X-linked, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-infantile-spinal-muscular-atrophy/">X-linked infantile spinal muscular atrophy</a></li>
<li>Spinal muscular atrophy, juvenile, proximal, autosomal dominant, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li>Spinal muscular atrophy, lower extremity, autosomal dominant, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li>Spinal muscular atrophy, lower extremity, dominant, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy-with-lower-extremity-predominance/">Spinal muscular atrophy with lower extremity predominance</a></li>
<li>Spinal muscular atrophy, X-linked 2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-infantile-spinal-muscular-atrophy/">X-linked infantile spinal muscular atrophy</a></li>
<li>Spinal muscular atrophy, X-linked lethal infantile, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-infantile-spinal-muscular-atrophy/">X-linked infantile spinal muscular atrophy</a></li>
<li>Spinocerebellar ataxia 36, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-36/">Spinocerebellar ataxia type 36</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-1/">Spinocerebellar ataxia type 1</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-2/">Spinocerebellar ataxia type 2</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-3/">Spinocerebellar ataxia type 3</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-36/">Spinocerebellar ataxia type 36</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-6/">Spinocerebellar ataxia type 6</a></li>
<li>Spinocerebellar ataxia with axonal neuropathy type 2, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-with-oculomotor-apraxia/">Ataxia with oculomotor apraxia</a></li>
<li>Spinocerebellar ataxia with epilepsy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/myoclonic-epilepsy-myopathy-sensory-ataxia/">Myoclonic epilepsy myopathy sensory ataxia</a></li>
<li>Spinocerebellar ataxia, hypogonadotropic hypogonadism, and chorioretinal dystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/boucher-neuhauser-syndrome/">Boucher-Neuhäuser syndrome</a></li>
<li>Spinocerebellar ataxia, recessive, non-Friedreich type 1, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ataxia-with-oculomotor-apraxia/">Ataxia with oculomotor apraxia</a></li>
<li>Spinocerebellar atrophy I, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spinocerebellar-ataxia-type-1/">Spinocerebellar ataxia type 1</a></li>
<li>Spondylarthritis ankylopoietica, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ankylosing-spondylitis/">Ankylosing spondylitis</a></li>
<li>Spondylitis ankylopoietica, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ankylosing-spondylitis/">Ankylosing spondylitis</a></li>
<li>spondyloarthritis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ankylosing-spondylitis/">Ankylosing spondylitis</a></li>
<li>Spondyloarthritis ankylopoietica, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ankylosing-spondylitis/">Ankylosing spondylitis</a></li>
<li>Spondylocarpotarsal syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylocarpotarsal-synostosis-syndrome/">Spondylocarpotarsal synostosis syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondylocarpotarsal-synostosis-syndrome/">Spondylocarpotarsal synostosis syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondylocostal-dysostosis/">Spondylocostal dysostosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondyloenchondrodysplasia-with-immune-dysregulation/">Spondyloenchondrodysplasia with immune dysregulation</a></li>
<li>Spondyloepimetaphyseal dysplasia, COL2A1-related, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-marked-metaphyseal-changes/">Spondyloepiphyseal dysplasia with marked metaphyseal changes</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>Spondyloepiphyseal dysplasia congenita (SEDC), COL2A1-related, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>Spondyloepiphyseal dysplasia tarda with progressive arthropathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/progressive-pseudorheumatoid-dysplasia/">Progressive pseudorheumatoid dysplasia</a></li>
<li>Spondyloepiphyseal dysplasia with congenital joint dislocations, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/chst3-related-skeletal-dysplasia/">CHST3-related skeletal dysplasia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-marked-metaphyseal-changes/">Spondyloepiphyseal dysplasia with marked metaphyseal changes</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-metatarsal-shortening/">Spondyloepiphyseal dysplasia with metatarsal shortening</a></li>
<li>Spondyloepiphyseal dysplasia with precocious osteoarthritis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-with-metatarsal-shortening/">Spondyloepiphyseal dysplasia with metatarsal shortening</a></li>
<li>Spondyloepiphyseal dysplasia, congenital type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloepiphyseal-dysplasia-congenita/">Spondyloepiphyseal dysplasia congenita</a></li>
<li>Spondyloepiphyseal dysplasia, Omani type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/chst3-related-skeletal-dysplasia/">CHST3-related skeletal dysplasia</a></li>
<li>Spondylohumerofemoral hypoplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/atelosteogenesis-type-1/">Atelosteogenesis type 1</a></li>
<li>Spondylometaepiphyseal dysplasia, anauxetic type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/anauxetic-dysplasia/">Anauxetic dysplasia</a></li>
<li>Spondylometaepiphyseal dysplasia, Menger type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/anauxetic-dysplasia/">Anauxetic dysplasia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondyloperipheral-dysplasia/">Spondyloperipheral dysplasia</a></li>
<li>Spondyloperipheral dysplasia, COL2A1-related, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondyloperipheral-dysplasia/">Spondyloperipheral dysplasia</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/spondylothoracic-dysostosis/">Spondylothoracic dysostosis</a></li>
<li>Spongy myocardium, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/left-ventricular-noncompaction/">Left ventricular noncompaction</a></li>
<li>Spontaneous occlusion of the Circle of Willis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/moyamoya-disease/">Moyamoya disease</a></li>
<li>Spontaneous pneumothorax, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/primary-spontaneous-pneumothorax/">Primary spontaneous pneumothorax</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sporadic-hemiplegic-migraine/">Sporadic hemiplegic migraine</a></li>
<li>Sporadic olivopontocerebellar atrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/multiple-system-atrophy/">Multiple system atrophy</a></li>
<li>Sporadic primary pulmonary hypertension, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pulmonary-arterial-hypertension/">Pulmonary arterial hypertension</a></li>
<li>SPR deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sepiapterin-reductase-deficiency/">Sepiapterin reductase deficiency</a></li>
<li>Sprue, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/celiac-disease/">Celiac disease</a></li>
<li>Spun glass hair, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/uncombable-hair-syndrome/">Uncombable hair syndrome</a></li>
<li>SQTS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/short-qt-syndrome/">Short QT syndrome</a></li>
<li>Squamous cell carcinoma of the head and neck, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/head-and-neck-squamous-cell-carcinoma/">Head and neck squamous cell carcinoma</a></li>
<li>SRD5A3-CDG, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/srd5a3-congenital-disorder-of-glycosylation/">SRD5A3-congenital disorder of glycosylation</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/srd5a3-congenital-disorder-of-glycosylation/">SRD5A3-congenital disorder of glycosylation</a></li>
<li>SRS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/russell-silver-syndrome/">Russell-Silver syndrome</a></li>
<li>SRS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/snyder-robinson-syndrome/">Snyder-Robinson syndrome</a></li>
<li>SRTD9, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/mainzer-saldino-syndrome/">Mainzer-Saldino syndrome</a></li>
<li>SSADH deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/succinic-semialdehyde-dehydrogenase-deficiency/">Succinic semialdehyde dehydrogenase deficiency</a></li>
<li>SSB syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/saddan/">SADDAN</a></li>
<li>SSS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sick-sinus-syndrome/">Sick sinus syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stac3-disorder/">STAC3 disorder</a></li>
<li>Stale fish syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/trimethylaminuria/">Trimethylaminuria</a></li>
<li>Stargardt disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stargardt-macular-degeneration/">Stargardt macular degeneration</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stargardt-macular-degeneration/">Stargardt macular degeneration</a></li>
<li>Startle syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-hyperekplexia/">Hereditary hyperekplexia</a></li>
<li>STAT3 deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-dominant-hyper-ige-syndrome/">Autosomal dominant hyper-IgE syndrome</a></li>
<li>STAT3-deficient hyper IgE syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-dominant-hyper-ige-syndrome/">Autosomal dominant hyper-IgE syndrome</a></li>
<li>Static encephalopathy of childhood with neurodegeneration in adulthood, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/beta-propeller-protein-associated-neurodegeneration/">Beta-propeller protein-associated neurodegeneration</a></li>
<li>STD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylothoracic-dysostosis/">Spondylothoracic dysostosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/steatocystoma-multiplex/">Steatocystoma multiplex</a></li>
<li>Steatosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/non-alcoholic-fatty-liver-disease/">Non-alcoholic fatty liver disease</a></li>
<li>Steele-Richardson-Olszewski syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/progressive-supranuclear-palsy/">Progressive supranuclear palsy</a></li>
<li>Steely hair syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/menkes-syndrome/">Menkes syndrome</a></li>
<li>Stein-Leventhal syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/polycystic-ovary-syndrome/">Polycystic ovary syndrome</a></li>
<li>Stem cell leukemia/lymphoma, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/8p11-myeloproliferative-syndrome/">8p11 myeloproliferative syndrome</a></li>
<li>Stenosis, aortic supravalvular, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li>Stenosis, supravalvular aortic, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li>Steroid 11 beta hydroxylase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/congenital-adrenal-hyperplasia-due-to-11-beta-hydroxylase-deficiency/">Congenital adrenal hyperplasia due to 11-beta-hydroxylase deficiency</a></li>
<li>Steroid 18-hydroxylase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/corticosterone-methyloxidase-deficiency/">Corticosterone methyloxidase deficiency</a></li>
<li>Steroid 18-oxidase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/corticosterone-methyloxidase-deficiency/">Corticosterone methyloxidase deficiency</a></li>
<li>Steroid 5-alpha-reductase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/5-alpha-reductase-deficiency/">5-alpha reductase deficiency</a></li>
<li>Stevens-Johnson syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stevens-johnson-syndrome-toxic-epidermal-necrolysis/">Stevens-Johnson syndrome/toxic epidermal necrolysis</a></li>
<li>Stevens-Johnson syndrome toxic epidermal necrolysis spectrum, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stevens-johnson-syndrome-toxic-epidermal-necrolysis/">Stevens-Johnson syndrome/toxic epidermal necrolysis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stevens-johnson-syndrome-toxic-epidermal-necrolysis/">Stevens-Johnson syndrome/toxic epidermal necrolysis</a></li>
<li>STGD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stargardt-macular-degeneration/">Stargardt macular degeneration</a></li>
<li>STHE, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-hyperekplexia/">Hereditary hyperekplexia</a></li>
<li>Stickler dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stickler-syndrome/">Stickler syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stickler-syndrome/">Stickler syndrome</a></li>
<li>Stiff-baby syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hereditary-hyperekplexia/">Hereditary hyperekplexia</a></li>
<li>Stilling-Turk-Duane syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/isolated-duane-retraction-syndrome/">Isolated Duane retraction syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sting-associated-vasculopathy-with-onset-in-infancy/">STING-associated vasculopathy with onset in infancy</a></li>
<li>STING-associated vasculopathy, infantile onset, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sting-associated-vasculopathy-with-onset-in-infancy/">STING-associated vasculopathy with onset in infancy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stormorken-syndrome/">Stormorken syndrome</a></li>
<li>Stormorken-Sjaastad-Langslet syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stormorken-syndrome/">Stormorken syndrome</a></li>
<li>Straight-chain acyl-CoA oxidase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/peroxisomal-acyl-coa-oxidase-deficiency/">Peroxisomal acyl-CoA oxidase deficiency</a></li>
<li>Striopallidodentate calcinosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/primary-familial-brain-calcification/">Primary familial brain calcification</a></li>
<li>Stuart-Prower factor deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/factor-x-deficiency/">Factor X deficiency</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sturge-weber-syndrome/">Sturge-Weber syndrome</a></li>
<li>Sturge-Weber-Dimitri syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sturge-weber-syndrome/">Sturge-Weber syndrome</a></li>
<li>Sturge-Weber-Krabbe syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sturge-weber-syndrome/">Sturge-Weber syndrome</a></li>
<li>Stuve-Wiedemann dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>Stuve-Wiedemann syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>Stuve-Wiedemann/Schwartz-Jampel type 2 syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>STWS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li>STXBP1 encephalopathy with epilepsy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li>STXBP1 epileptic encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li>STXBP1-related developmental and epileptic encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li>STXBP1-related early-onset encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li>STXBP1-related epileptic encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stxbp1-encephalopathy/">STXBP1 encephalopathy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>Subacute necrotizing encephalomyelopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/leigh-syndrome/">Leigh syndrome</a></li>
<li>Subaortic hypertrophic stenosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/familial-hypertrophic-cardiomyopathy/">Familial hypertrophic cardiomyopathy</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/subcortical-band-heterotopia/">Subcortical band heterotopia</a></li>
<li>Subcortical laminar heterotopia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/subcortical-band-heterotopia/">Subcortical band heterotopia</a></li>
<li>Subluxation of lens, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/isolated-ectopia-lentis/">Isolated ectopia lentis</a></li>
<li>Submandibular, ocular, and rectal pain with flushing, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/paroxysmal-extreme-pain-disorder/">Paroxysmal extreme pain disorder</a></li>
<li>Succinate-CoA ligase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sucla2-related-mitochondrial-dna-depletion-syndrome/">SUCLA2-related mitochondrial DNA depletion syndrome</a></li>
<li>Succinate-coenzyme A ligase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/suclg1-related-mitochondrial-dna-depletion-syndrome/">SUCLG1-related mitochondrial DNA depletion syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/succinic-semialdehyde-dehydrogenase-deficiency/">Succinic semialdehyde dehydrogenase deficiency</a></li>
<li>Succinyl-CoA 3-oxoacid transferase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/succinyl-coa3-ketoacid-coa-transferase-deficiency/">Succinyl-CoA:3-ketoacid CoA transferase deficiency</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/succinyl-coa3-ketoacid-coa-transferase-deficiency/">Succinyl-CoA:3-ketoacid CoA transferase deficiency</a></li>
<li>Succinyl-CoA:3-oxoacid CoA transferase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/succinyl-coa3-ketoacid-coa-transferase-deficiency/">Succinyl-CoA:3-ketoacid CoA transferase deficiency</a></li>
<li>Succinyl-CoA:acetoacetate transferase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/succinyl-coa3-ketoacid-coa-transferase-deficiency/">Succinyl-CoA:3-ketoacid CoA transferase deficiency</a></li>
<li>Succinylcholine sensitivity, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pseudocholinesterase-deficiency/">Pseudocholinesterase deficiency</a></li>
<li>Succinylpurinemic autism, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/adenylosuccinate-lyase-deficiency/">Adenylosuccinate lyase deficiency</a></li>
<li>SUCLA2 deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sucla2-related-mitochondrial-dna-depletion-syndrome/">SUCLA2-related mitochondrial DNA depletion syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sucla2-related-mitochondrial-dna-depletion-syndrome/">SUCLA2-related mitochondrial DNA depletion syndrome</a></li>
<li>SUCLA2-related mitochondrial DNA depletion syndrome, encephalomyopathic form with methylmalonic aciduria, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sucla2-related-mitochondrial-dna-depletion-syndrome/">SUCLA2-related mitochondrial DNA depletion syndrome</a></li>
<li>SUCLG1 deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/suclg1-related-mitochondrial-dna-depletion-syndrome/">SUCLG1-related mitochondrial DNA depletion syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/suclg1-related-mitochondrial-dna-depletion-syndrome/">SUCLG1-related mitochondrial DNA depletion syndrome</a></li>
<li>SUCLG1-related mitochondrial DNA depletion syndrome, encephalomyopathic form with methylmalonic aciduria, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/suclg1-related-mitochondrial-dna-depletion-syndrome/">SUCLG1-related mitochondrial DNA depletion syndrome</a></li>
<li>SUCLG1-related succinyl-CoA ligase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/suclg1-related-mitochondrial-dna-depletion-syndrome/">SUCLG1-related mitochondrial DNA depletion syndrome</a></li>
<li>Sucrase-isomaltase deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/congenital-sucrase-isomaltase-deficiency/">Congenital sucrase-isomaltase deficiency</a></li>
<li>Sudanophilic leukodystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pelizaeus-merzbacher-disease/">Pelizaeus-Merzbacher disease</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sudden-infant-death-with-dysgenesis-of-the-testes-syndrome/">Sudden infant death with dysgenesis of the testes syndrome</a></li>
<li>Sudden unexpected nocturnal death syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/brugada-syndrome/">Brugada syndrome</a></li>
<li>Sudden unexplained death syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/brugada-syndrome/">Brugada syndrome</a></li>
<li>SUDS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/brugada-syndrome/">Brugada syndrome</a></li>
<li>Sulfatide lipidosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/metachromatic-leukodystrophy/">Metachromatic leukodystrophy</a></li>
<li>Sulfatidosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/metachromatic-leukodystrophy/">Metachromatic leukodystrophy</a></li>
<li>Sulfocysteinuria, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/isolated-sulfite-oxidase-deficiency/">Isolated sulfite oxidase deficiency</a></li>
<li>SUNDS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/brugada-syndrome/">Brugada syndrome</a></li>
<li>Supernumerary der(22) syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/emanuel-syndrome/">Emanuel syndrome</a></li>
<li>Supernumerary der(22)t(11;22) syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/emanuel-syndrome/">Emanuel syndrome</a></li>
<li>Supernumerary derivative 22 chromosome syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/emanuel-syndrome/">Emanuel syndrome</a></li>
<li>Suppurative hidradenitides, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hidradenitis-suppurativa/">Hidradenitis suppurativa</a></li>
<li>Suppurative hidradenitis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/hidradenitis-suppurativa/">Hidradenitis suppurativa</a></li>
<li>Supranuclear palsy, progressive, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/progressive-supranuclear-palsy/">Progressive supranuclear palsy</a></li>
<li>Supravalvar aortic stenosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li>Supravalvular stenosis, aortic, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li>Surdo-cardiac syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jervell-and-lange-nielsen-syndrome/">Jervell and Lange-Nielsen syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/surfactant-dysfunction/">Surfactant dysfunction</a></li>
<li>Surfactant metabolism deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/surfactant-dysfunction/">Surfactant dysfunction</a></li>
<li>Susceptibility to acute necrotizing encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/acute-necrotizing-encephalopathy-type-1/">Acute necrotizing encephalopathy type 1</a></li>
<li>Susceptibility to infection-induced acute encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/acute-necrotizing-encephalopathy-type-1/">Acute necrotizing encephalopathy type 1</a></li>
<li>Susceptibility to infection-induced acute encephalopathy 3, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/acute-necrotizing-encephalopathy-type-1/">Acute necrotizing encephalopathy type 1</a></li>
<li>Sutherland-Haan syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/renpenning-syndrome/">Renpenning syndrome</a></li>
<li>Suxamethonium sensitivity, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pseudocholinesterase-deficiency/">Pseudocholinesterase deficiency</a></li>
<li>SVAS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/supravalvular-aortic-stenosis/">Supravalvular aortic stenosis</a></li>
<li>Swiss type amyloid polyneuropathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/transthyretin-amyloidosis/">Transthyretin amyloidosis</a></li>
<li>SWS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/stuve-wiedemann-syndrome/">Stüve-Wiedemann syndrome</a></li>
<li>SWS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sturge-weber-syndrome/">Sturge-Weber syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/swyer-syndrome/">Swyer syndrome</a></li>
<li>Symmetric parietal foramina, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/enlarged-parietal-foramina/">Enlarged parietal foramina</a></li>
<li>Syndactyly-anophthalmos syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/ophthalmo-acromelic-syndrome/">Ophthalmo-acromelic syndrome</a></li>
<li>Syndromic diarrhea, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/trichohepatoenteric-syndrome/">Trichohepatoenteric syndrome</a></li>
<li>Syndromic microphthalmia 3, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/sox2-anophthalmia-syndrome/">SOX2 anophthalmia syndrome</a></li>
<li>Syndromic microphthalmia-7, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/microphthalmia-with-linear-skin-defects-syndrome/">Microphthalmia with linear skin defects syndrome</a></li>
<li>Syndromic X-linked mental retardation, Siderius type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-intellectual-disability-siderius-type/">X-linked intellectual disability, Siderius type</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/syngap1-related-intellectual-disability/">SYNGAP1-related intellectual disability</a></li>
<li>Systemic carnitine deficiency, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/primary-carnitine-deficiency/">Primary carnitine deficiency</a></li>
<li>Systemic hemosiderosis due to aceruloplasminemia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/aceruloplasminemia/">Aceruloplasminemia</a></li>
<li>Systemic juvenile rheumatoid arthritis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/systemic-lupus-erythematosus/">Systemic lupus erythematosus</a></li>
<li>Systemic mast cell disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-mastocytosis/">Systemic mastocytosis</a></li>
<li>Systemic mast-cell disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-mastocytosis/">Systemic mastocytosis</a></li>
<li>Systemic mastocytoses, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-mastocytosis/">Systemic mastocytosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/systemic-mastocytosis/">Systemic mastocytosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/systemic-scleroderma/">Systemic scleroderma</a></li>
<li>Systemic sclerosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-scleroderma/">Systemic scleroderma</a></li>
<li>Systemic tissue mast cell disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/systemic-mastocytosis/">Systemic mastocytosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/sezary-syndrome/">Sézary syndrome</a></li>
</ul>
</section>
<section>
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