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<span>Genetic Conditions: J</span>
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<span class="page-url print-only">URL of this page: https://medlineplus.gov/genetics/condition-j/</span>
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<h1>Genetic Conditions: J</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><span class="active">J</span></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><a href="https://medlineplus.gov/genetics/condition-s/" data-alpha="S">S</a></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>
</ul>
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</section>
<section>
<ul class="withident breaklist">
<li>Jackson-Lawler syndrome (PC-2), <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pachyonychia-congenita/">Pachyonychia congenita</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/jackson-weiss-syndrome/">Jackson-Weiss syndrome</a></li>
<li>Jacob&#x27;s syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/47xyy-syndrome/">47,XYY syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/jacobsen-syndrome/">Jacobsen syndrome</a></li>
<li>Jacobsen thrombocytopenia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jacobsen-syndrome/">Jacobsen syndrome</a></li>
<li>Jadassohn-Lewandowski syndrome (PC-1), <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pachyonychia-congenita/">Pachyonychia congenita</a></li>
<li>Jaeken syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/pmm2-congenital-disorder-of-glycosylation/">PMM2-congenital disorder of glycosylation</a></li>
<li>JAK3 SCID, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jak3-deficient-severe-combined-immunodeficiency/">JAK3-deficient severe combined immunodeficiency</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/jak3-deficient-severe-combined-immunodeficiency/">JAK3-deficient severe combined immunodeficiency</a></li>
<li>Jankovic-Rivera syndrome, <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>Jansky-Bielschowsky disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln5-disease/">CLN5 disease</a></li>
<li>Jansky-Bielschowsky disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln2-disease/">CLN2 disease</a></li>
<li>Janz syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-myoclonic-epilepsy/">Juvenile myoclonic epilepsy</a></li>
<li>Japanese autoinflammatory syndrome with lipodystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nakajo-nishimura-syndrome/">Nakajo-Nishimura syndrome</a></li>
<li>Jarcho-Levin syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylocostal-dysostosis/">Spondylocostal dysostosis</a></li>
<li>Jarcho-Levin syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/spondylothoracic-dysostosis/">Spondylothoracic dysostosis</a></li>
<li>JASL, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/nakajo-nishimura-syndrome/">Nakajo-Nishimura syndrome</a></li>
<li>Jaundice, chronic idiopathic, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/dubin-johnson-syndrome/">Dubin-Johnson syndrome</a></li>
<li>JBTS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/joubert-syndrome/">Joubert syndrome</a></li>
<li>JEB, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/junctional-epidermolysis-bullosa/">Junctional epidermolysis bullosa</a></li>
<li>JEB-LOC, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/laryngo-onycho-cutaneous-syndrome/">Laryngo-onycho-cutaneous syndrome</a></li>
<li>Jensen syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/deafness-dystonia-optic-neuronopathy-syndrome/">Deafness-dystonia-optic neuronopathy syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/jervell-and-lange-nielsen-syndrome/">Jervell and Lange-Nielsen syndrome</a></li>
<li>Jervell-Lange Nielsen syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jervell-and-lange-nielsen-syndrome/">Jervell and Lange-Nielsen syndrome</a></li>
<li>Jeune syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/asphyxiating-thoracic-dystrophy/">Asphyxiating thoracic dystrophy</a></li>
<li>Jeune thoracic dysplasia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/asphyxiating-thoracic-dystrophy/">Asphyxiating thoracic dystrophy</a></li>
<li>Jeune thoracic dystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/asphyxiating-thoracic-dystrophy/">Asphyxiating thoracic dystrophy</a></li>
<li>JIA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li>JIP, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-polyposis-syndrome/">Juvenile polyposis syndrome</a></li>
<li>JLNS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jervell-and-lange-nielsen-syndrome/">Jervell and Lange-Nielsen syndrome</a></li>
<li>Job syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-dominant-hyper-ige-syndrome/">Autosomal dominant hyper-IgE syndrome</a></li>
<li>Job&#x27;s syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-dominant-hyper-ige-syndrome/">Autosomal dominant hyper-IgE syndrome</a></li>
<li>Job-Buckley syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/autosomal-dominant-hyper-ige-syndrome/">Autosomal dominant hyper-IgE syndrome</a></li>
<li>JOD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/type-1-diabetes/">Type 1 diabetes</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/joubert-syndrome/">Joubert syndrome</a></li>
<li>Joubert-Bolthauser syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/joubert-syndrome/">Joubert syndrome</a></li>
<li>JPD, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-paget-disease/">Juvenile Paget disease</a></li>
<li>JPLS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-primary-lateral-sclerosis/">Juvenile primary lateral sclerosis</a></li>
<li>JPS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-polyposis-syndrome/">Juvenile polyposis syndrome</a></li>
<li>JRA, <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/junctional-epidermolysis-bullosa/">Junctional epidermolysis bullosa</a></li>
<li>Junctional epidermolysis bullosa with pyloric atresia, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/epidermolysis-bullosa-with-pyloric-atresia/">Epidermolysis bullosa with pyloric atresia</a></li>
<li>Juvenile Batten disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln3-disease/">CLN3 disease</a></li>
<li>Juvenile cerebroretinal degeneration, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln3-disease/">CLN3 disease</a></li>
<li>Juvenile chronic arthritis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li>Juvenile diabetes, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/type-1-diabetes/">Type 1 diabetes</a></li>
<li>Juvenile gout, choreoathetosis, mental retardation syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/lesch-nyhan-syndrome/">Lesch-Nyhan syndrome</a></li>
<li>Juvenile hereditary epithelial dystrophy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/meesmann-corneal-dystrophy/">Meesmann corneal dystrophy</a></li>
<li>Juvenile hyperuricemia syndrome, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/lesch-nyhan-syndrome/">Lesch-Nyhan syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li>Juvenile intestinal polyposis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-polyposis-syndrome/">Juvenile polyposis syndrome</a></li>
<li>Juvenile macular degeneration, <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/juvenile-myoclonic-epilepsy/">Juvenile myoclonic epilepsy</a></li>
<li>Juvenile neuronal ceroid lipofuscinosis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/cln3-disease/">CLN3 disease</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/juvenile-paget-disease/">Juvenile Paget disease</a></li>
<li>Juvenile Paget&#x27;s disease, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-paget-disease/">Juvenile Paget disease</a></li>
<li>Juvenile pernicious anemia with proteinuria due to selective intestinal malabsorption of vitamin B12, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/imerslund-grasbeck-syndrome/">Imerslund-Gräsbeck syndrome</a></li>
<li>Juvenile PLS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-primary-lateral-sclerosis/">Juvenile primary lateral sclerosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/juvenile-polyposis-syndrome/">Juvenile polyposis syndrome</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/juvenile-primary-lateral-sclerosis/">Juvenile primary lateral sclerosis</a></li>
<li><a href="https://medlineplus.gov/genetics/condition/juvenile-primary-osteoporosis/">Juvenile primary osteoporosis</a></li>
<li>Juvenile RA, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li>Juvenile retinoschisis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/x-linked-juvenile-retinoschisis/">X-linked juvenile retinoschisis</a></li>
<li>Juvenile rheumatoid arthritis, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/juvenile-idiopathic-arthritis/">Juvenile idiopathic arthritis</a></li>
<li>Juvenile subacute necrotizing encephalopathy, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/leigh-syndrome/">Leigh syndrome</a></li>
<li>Juvenile sulfatidosis, Austin type, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/multiple-sulfatase-deficiency/">Multiple sulfatase deficiency</a></li>
<li>Juvenile-onset diabetes, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/type-1-diabetes/">Type 1 diabetes</a></li>
<li>Juvenile-onset diabetes mellitus, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/type-1-diabetes/">Type 1 diabetes</a></li>
<li>Juxtaglomerular hyperplasia with secondary aldosteronism, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/bartter-syndrome/">Bartter syndrome</a></li>
<li>JWS, <i>see</i> <a href="https://medlineplus.gov/genetics/condition/jackson-weiss-syndrome/">Jackson-Weiss syndrome</a></li>
</ul>
</section>
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