299 lines
No EOL
44 KiB
HTML
299 lines
No EOL
44 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="en" id="ency-index" class="nojs us" data-root="//medlineplus.gov">
|
||
<head>
|
||
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
|
||
<meta http-equiv="window-target" content="_top"/>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
|
||
<meta charset="utf-8"/>
|
||
<meta property="fb:app_id" content="1042245625821448"/>
|
||
<meta name="expires" content="Fri, 14 03 2025"/>
|
||
<meta name="ac-dictionary" content="medlineplus-ac-dictionary"/>
|
||
<link rel="shortcut icon" href="https://medlineplus.gov/images/favicon.ico" type="image/x-icon"/>
|
||
<link rel="apple-touch-icon" href="//medlineplus.gov/images/touch-icon.png"/>
|
||
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
||
<link rel="stylesheet" href="https://medlineplus.gov/css/common_new.css?04272023"/>
|
||
<!--[if IE 8]> <link rel="stylesheet" href="https://medlineplus.gov/css/ie8/common.css"><![endif]-->
|
||
<link rel="stylesheet" href="https://medlineplus.gov/uswds/css/uswds_styles.css"/>
|
||
<link rel="stylesheet" href="https://medlineplus.gov/css/ency/ency2.css?07162024"/>
|
||
<script type="text/javascript">document.querySelector("html").className = document.querySelector("html").className.replace(/nojs[\s]*/g, '');</script>
|
||
<script src="https://medlineplus.gov/uswds/js/uswds-init.min.js" type="text/javascript">
|
||
</script>
|
||
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-MMVM77');</script>
|
||
<link rel="canonical" href="https://medlineplus.gov/ency/encyclopedia_S.htm"/><meta property="og:url" content="https://medlineplus.gov/ency/encyclopedia_S.htm"/><meta property="og:title" content="Medical Encyclopedia: S: MedlinePlus"/><meta property="twiter:title" content="Medical Encyclopedia: S: MedlinePlus"/><meta property="og:image" content="https://medlineplus.gov/images/share_ency_1.jpg"/><meta property="og:image" content="https://medlineplus.gov/images/share_ency_2.jpg"/><meta property="og:image" content="https://medlineplus.gov/images/share_ency_3.jpg"/><link href="https://medlineplus.gov/ency/encyclopedia_S.htm" hreflang="en" rel="alternate"/><link href="https://medlineplus.gov/spanish/ency/encyclopedia_S.htm" hreflang="es" rel="alternate"/><title>Medical Encyclopedia: S: MedlinePlus</title>
|
||
</head>
|
||
<body>
|
||
<!-- Google Tag Manager -->
|
||
<noscript><iframe title="googletagmanager" src="//www.googletagmanager.com/ns.html?id=GTM-MMVM77" height="0" width="0" style="display:none;visibility:hidden">
|
||
</iframe>
|
||
</noscript>
|
||
<!-- End Google Tag Manager -->
|
||
|
||
<a name="top" id="top">
|
||
</a>
|
||
<a class="hide-offscreen" href="#start">Skip navigation</a>
|
||
|
||
<section class="usa-banner" aria-label="Official website of the United States government">
|
||
<div class="usa-accordion">
|
||
<header class="usa-banner__header">
|
||
<div class="usa-banner__inner">
|
||
<div class="grid-col-auto">
|
||
<img aria-hidden="true" class="usa-banner__header-flag" src="https://medlineplus.gov/uswds/img/us_flag_small.png" alt=""/>
|
||
</div>
|
||
<div class="grid-col-fill tablet:grid-col-auto" aria-hidden="true">
|
||
<p class="usa-banner__header-text">
|
||
An official website of the United States government
|
||
</p>
|
||
<p class="usa-banner__header-action">Here’s how you know</p>
|
||
</div>
|
||
<button type="button" class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner-default-default">
|
||
<span class="usa-banner__button-text">Here’s how you know</span>
|
||
</button>
|
||
</div>
|
||
</header>
|
||
<div class="usa-banner__content usa-accordion__content" id="gov-banner-default-default">
|
||
<div class="grid-row grid-gap-lg">
|
||
<div class="usa-banner__guidance tablet:grid-col-6">
|
||
<img class="usa-banner__icon usa-media-block__img" src="https://medlineplus.gov/uswds/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true"/>
|
||
<div class="usa-media-block__body">
|
||
<p>
|
||
<strong>Official websites use .gov</strong><br/>A
|
||
<strong>.gov</strong> website belongs to an official government
|
||
organization in the United States.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="usa-banner__guidance tablet:grid-col-6">
|
||
<img class="usa-banner__icon usa-media-block__img" src="https://medlineplus.gov/uswds/img/icon-https.svg" role="img" alt="" aria-hidden="true"/>
|
||
<div class="usa-media-block__body">
|
||
<p>
|
||
<strong>Secure .gov websites use HTTPS</strong><br/>A
|
||
<strong>lock</strong> (
|
||
<span class="icon-lock"><svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewBox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-description-default" focusable="false">
|
||
<title id="banner-lock-title-default">Lock</title>
|
||
<desc id="banner-lock-description-default">Locked padlock icon</desc>
|
||
<path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z">
|
||
</path>
|
||
</svg> </span>) or <strong>https://</strong> means you’ve safely connected to
|
||
the .gov website. Share sensitive information only on official,
|
||
secure websites.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
|
||
|
||
<div id="mplus-wrap">
|
||
<header>
|
||
<div id="mplus-header">
|
||
|
||
<!-- Orgs
|
||
================================================== -->
|
||
<div id="mplus-orgs">
|
||
<a title="National Institutes of Health" target="_blank" class="nih-org" href="//www.nih.gov/">
|
||
<img alt="National Institutes of Health" src="https://medlineplus.gov/images/nihlogo.png" class="nihlogo"/>
|
||
</a><a target="_blank" href="https://www.nlm.nih.gov/"> National Library of Medicine </a>
|
||
</div>
|
||
<!-- Logo
|
||
================================================== -->
|
||
<div id="mplus-logo" class="years-25">
|
||
<a href="https://medlineplus.gov">
|
||
<img src="https://medlineplus.gov/images/m_logo_25.png" title="MedlinePlus Trusted Health Information for You" alt="MedlinePlus Trusted Health Information for You"/>
|
||
</a>
|
||
</div>
|
||
<!-- Nav Menu
|
||
================================================== -->
|
||
<div id="mplus-nav">
|
||
<div class="sm-live-area hide-offscreen" aria-live="polite">The navigation menu has been collapsed.</div>
|
||
<!-- Menu Button-->
|
||
<button type="submit" aria-controls="mplus-menu-list" role="button" title="Menu" class="navmenu-btn" id="sm-menu-btn" aria-pressed="false" tabindex="0">Menu<span class="icon icon-nav-menu">
|
||
</span></button><ul class="nav-list" id="mplus-menu-list">
|
||
<li><a href="https://medlineplus.gov/healthtopics.html">Health Topics</a></li>
|
||
<li><a href="https://medlineplus.gov/druginformation.html">Drugs & Supplements</a></li>
|
||
<li><a href="https://medlineplus.gov/genetics/">Genetics</a></li>
|
||
<li><a href="https://medlineplus.gov/lab-tests/">Medical Tests</a></li>
|
||
<li><a href="https://medlineplus.gov/encyclopedia.html">Medical Encyclopedia</a></li>
|
||
<li><a href="https://medlineplus.gov/about/">About MedlinePlus</a></li>
|
||
</ul><button type="submit" aria-controls="mplus-search" role="button" title="Search" class="navmenu-btn" id="sm-search-btn" aria-pressed="false" tabindex="0"><span class="hide-offscreen">Show </span>Search<span class="icon icon-nav-search">
|
||
</span></button>
|
||
<div class="top-1">
|
||
<!-- Search
|
||
================================================== -->
|
||
<form target="_self" title="Search MedlinePlus" action="//vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta" method="get" id="mplus-search">
|
||
<input type="hidden" value="medlineplus" name="v:project"/>
|
||
<input type="hidden" value="medlineplus-bundle" name="v:sources"/>
|
||
<div class="form-box text-combo">
|
||
<div class="form-area"><label for="searchtext_primary" class="hide-offscreen">Search MedlinePlus</label>
|
||
<span role="status" aria-live="polite" class="ui-helper-hidden-accessible">
|
||
</span><input type="text" aria-haspopup="true" aria-autocomplete="list" role="textbox" autocomplete="off" name="query" size="40" maxlength="400" title="Site Search input" alt="Site Search input" placeholder="Search MedlinePlus" class="form-text ui-autocomplete-input" id="searchtext_primary"/>
|
||
</div>
|
||
<div class="button-area">
|
||
<button type="submit" alt="Search MedlinePlus" title="Search MedlinePlus" class="form-btn">GO</button>
|
||
</div>
|
||
</div>
|
||
</form>
|
||
<!-- Secondary Nav
|
||
================================================== -->
|
||
<div class="secondarynav">
|
||
<ul class="nav-list">
|
||
<li><a href="https://medlineplus.gov/about/"><span>About MedlinePlus</span></a></li>
|
||
<li><a href="https://medlineplus.gov/whatsnew/"><span>What's New</span></a></li>
|
||
<li><a href="https://medlineplus.gov/sitemap.html"><span>Site Map</span></a></li>
|
||
<li><a target="_blank" href="https://support.nlm.nih.gov/knowledgebase/category/?id=CAT-01231&category=medlineplus&from=//medlineplus.gov/ency/encyclopedia_S.htm"><span>Customer Support</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
<!-- Nav Bar
|
||
================================================== -->
|
||
<div id="mplus-nav-bar">
|
||
<ul class="nav-list">
|
||
<li><a href="https://medlineplus.gov/healthtopics.html">Health Topics</a></li><li><a href="https://medlineplus.gov/druginformation.html">Drugs & Supplements</a></li><li><a href="https://medlineplus.gov/genetics/">Genetics</a></li><li><a href="https://medlineplus.gov/lab-tests/">Medical Tests</a></li><li><a href="https://medlineplus.gov/encyclopedia.html">Medical Encyclopedia</a></li>
|
||
</ul>
|
||
</div>
|
||
<a title="Español" id="mplus-lang-toggle" href="../spanish/ency/encyclopedia_S.htm">Español</a>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
<!-- Content
|
||
================================================== -->
|
||
<div id="mplus-content">
|
||
<!-- Breadrcumbs -->
|
||
<div id="breadcrumbs"><div itemtype="http://schema.org/BreadcrumbList" itemscope="" itemprop="breadcrumb"><span class="hide-offscreen">You Are Here:</span>
|
||
<div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem">
|
||
<a href="https://medlineplus.gov" itemprop="item"><span itemprop="name">Home</span></a>
|
||
→
|
||
<meta itemprop="position" content="1"/>
|
||
</div>
|
||
|
||
<div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem">
|
||
<a href="https://medlineplus.gov/encyclopedia.html" itemprop="item"><span itemprop="name">Medical Encyclopedia</span></a>
|
||
→
|
||
<meta itemprop="position" content="2"/>
|
||
</div>
|
||
</div><div><span>Medical Encyclopedia: S</span></div></div>
|
||
<span class="page-url print-only">URL of this page: //medlineplus.gov/ency/encyclopedia_S.htm.htm</span>
|
||
<!-- Article -->
|
||
<article><div id="d-article"><nav role="navigation">
|
||
<div class="alphanav section bluearea azindex"><div class="section-header"><div class="section-title"><span class="blue-label">Other encyclopedia articles A-Z</span></div><div class="section-button"><button title="Expand/Collapse section" role="button" aria-controls="section-index" type="submit">
|
||
<span class="icon icon-section-action">
|
||
</span>
|
||
</button></div><div aria-live="polite" class="sm-live-area hide-offscreen">
|
||
</div></div><div id="section-index" class="section-body"><ul class="alpha-links">
|
||
<li><a href="encyclopedia_A.htm">A</a></li>
|
||
<li><a href="encyclopedia_B.htm">B</a></li>
|
||
<li><a href="encyclopedia_C.htm">C</a></li>
|
||
<li><a href="encyclopedia_D.htm">D</a></li>
|
||
<li><a href="encyclopedia_E.htm">E</a></li>
|
||
<li><a href="encyclopedia_F.htm">F</a></li>
|
||
<li><a href="encyclopedia_G.htm">G</a></li>
|
||
<li><a href="encyclopedia_H.htm">H</a></li>
|
||
<li><a href="encyclopedia_I.htm">I</a></li>
|
||
<li><a href="encyclopedia_J.htm">J</a></li>
|
||
<li><a href="encyclopedia_K.htm">K</a></li>
|
||
<li><a href="encyclopedia_L.htm">L</a></li>
|
||
<li><a href="encyclopedia_M.htm">M</a></li>
|
||
<li><a href="encyclopedia_N.htm">N</a></li>
|
||
<li><a href="encyclopedia_O.htm">O</a></li>
|
||
<li><a href="encyclopedia_P.htm">P</a></li>
|
||
<li><a href="encyclopedia_Q.htm">Q</a></li>
|
||
<li><a href="encyclopedia_R.htm">R</a></li>
|
||
<li><span class="active">S</span></li>
|
||
<li><a href="encyclopedia_T.htm">T</a></li>
|
||
<li><a href="encyclopedia_U.htm">U</a></li>
|
||
<li><a href="encyclopedia_V.htm">V</a></li>
|
||
<li><a href="encyclopedia_W.htm">W</a></li>
|
||
<li><a href="encyclopedia_X.htm">X</a></li>
|
||
<li><a href="encyclopedia_Y.htm">Y</a></li>
|
||
<li><a href="encyclopedia_Z.htm">Z</a></li>
|
||
<li><a href="encyclopedia_0-9.htm">0-9</a></li>
|
||
</ul></div></div>
|
||
</nav><div class="page-info"><div class="page-title"><a name="start" id="start">
|
||
</a><h1 class="with-also">Medical Encyclopedia: S</h1>
|
||
</div><div class="page-actions">
|
||
</div>
|
||
<noscript>
|
||
<span class="js-disabled-message">To use the sharing features on this page, please enable JavaScript.</span>
|
||
</noscript></div><ul id="index"><li><a href="article/002716.htm">Sachet poisoning</a></li><li><a href="patientinstructions/000610.htm">Sacroiliac joint pain - aftercare</a></li><li><a href="article/001930.htm">Safe driving for teens</a></li><li><a href="patientinstructions/000061.htm">Safe eating during cancer treatment</a></li><li><a href="article/001949.htm">Safe sex </a></li><li><a href="article/002132.htm">Salads and nutrients</a></li><li><a href="patientinstructions/000801.htm">Saline nasal washes</a></li><li><a href="article/001039.htm">Salivary duct stones</a></li><li><a href="article/003847.htm">Salivary gland biopsy</a></li><li><a href="article/001041.htm">Salivary gland infections</a></li><li><a href="article/001040.htm">Salivary gland tumors</a></li><li><a href="article/000294.htm">Salmonella enterocolitis</a></li><li><a href="article/000076.htm">Sarcoidosis</a></li><li><a href="article/002687.htm">Sassafras oil overdose</a></li><li><a href="article/003127.htm">Satiety - early </a></li><li><a href="patientinstructions/000864.htm">Savings account for health care costs</a></li><li><a href="article/000830.htm">Scabies</a></li><li><a href="article/001352.htm">Scalded skin syndrome</a></li><li><a href="article/003226.htm">Scales</a></li><li><a href="article/002991.htm">Scar revision</a></li><li><a href="article/000974.htm">Scarlet fever</a></li><li><a href="article/003572.htm">Schilling test</a></li><li><a href="article/003501.htm">Schirmer test</a></li><li><a href="article/001321.htm">Schistosomiasis</a></li><li><a href="article/000930.htm">Schizoaffective disorder</a></li><li><a href="article/000920.htm">Schizoid personality disorder</a></li><li><a href="article/000928.htm">Schizophrenia</a></li><li><a href="article/001525.htm">Schizotypal personality disorder</a></li><li><a href="article/002058.htm">School age test or procedure preparation</a></li><li><a href="article/002017.htm">School-age children development</a></li><li><a href="article/000686.htm">Sciatica</a></li><li><a href="article/002295.htm">Sclera</a></li><li><a href="article/007749.htm">Scleredema diabeticorum</a></li><li><a href="article/001003.htm">Scleritis</a></li><li><a href="article/000429.htm">Scleroderma</a></li><li><a href="article/002195.htm">Scleroderma - resources</a></li><li><a href="article/001256.htm">Scleroma</a></li><li><a href="article/000285.htm">Sclerosing cholangitis</a></li><li><a href="article/001241.htm">Scoliosis</a></li><li><a href="article/002201.htm">Scoliosis - resources</a></li><li><a href="article/007383.htm">Scoliosis surgery in children</a></li><li><a href="article/002849.htm">Scorpion fish sting</a></li><li><a href="article/002850.htm">Scorpions</a></li><li><a href="article/007212.htm">Scrape</a></li><li><a href="patientinstructions/000355.htm">Screen time and children</a></li><li><a href="article/003538.htm">Screening and diagnosis for HIV</a></li><li><a href="article/001354.htm">Scrofula</a></li><li><a href="article/001283.htm">Scrotal masses</a></li><li><a href="article/003161.htm">Scrotal swelling</a></li><li><a href="article/003780.htm">Scrotal ultrasound</a></li><li><a href="article/002296.htm">Scrotum</a></li><li><a href="article/000355.htm">Scurvy</a></li><li><a href="article/001532.htm">Seasonal affective disorder</a></li><li><a href="article/002292.htm">Sebaceous adenoma</a></li><li><a href="article/000963.htm">Seborrheic dermatitis</a></li><li><a href="article/000884.htm">Seborrheic keratosis</a></li><li><a href="article/002544.htm">Secobarbital overdose</a></li><li><a href="article/002300.htm">Secondary infections</a></li><li><a href="article/000759.htm">Secondary parkinsonism</a></li><li><a href="article/000585.htm">Secondary systemic amyloidosis</a></li><li><a href="article/003892.htm">Secretin stimulation test</a></li><li><a href="article/003200.htm">Seizures</a></li><li><a href="article/001476.htm">Selective deficiency of IgA</a></li><li><a href="article/001546.htm">Selective mutism</a></li><li><a href="article/007005.htm">Selective mutism - resources</a></li><li><a href="article/002414.htm">Selenium in diet</a></li><li><a href="patientinstructions/000144.htm">Self catheterization - female</a></li><li><a href="patientinstructions/000143.htm">Self catheterization - male</a></li><li><a href="patientinstructions/000986.htm">Self-testing for COVID-19</a></li><li><a href="article/003627.htm">Semen analysis</a></li><li><a href="article/003741.htm">Sensitivity analysis</a></li><li><a href="article/000750.htm">Sensorimotor polyneuropathy</a></li><li><a href="article/003291.htm">Sensorineural deafness</a></li><li><a href="article/001542.htm">Separation anxiety in children</a></li><li><a href="article/000666.htm">Sepsis</a></li><li><a href="article/000430.htm">Septic arthritis</a></li><li><a href="article/000668.htm">Septic shock</a></li><li><a href="article/001355.htm">Septicemia</a></li><li><a href="article/003012.htm">Septoplasty</a></li><li><a href="patientinstructions/000246.htm">Septoplasty - discharge</a></li><li><a href="article/003536.htm">Serology for brucellosis</a></li><li><a href="article/002306.htm">Serosanguineous</a></li><li><a href="article/003562.htm">Serotonin blood test</a></li><li><a href="article/007272.htm">Serotonin syndrome</a></li><li><a href="article/001172.htm">Sertoli-Leydig cell tumor</a></li><li><a href="article/003677.htm">Serum free hemoglobin test</a></li><li><a href="article/003352.htm">Serum herpes simplex antibodies</a></li><li><a href="article/003488.htm">Serum iron test</a></li><li><a href="article/003362.htm">Serum phenylalanine screening</a></li><li><a href="article/003714.htm">Serum progesterone</a></li><li><a href="article/000820.htm">Serum sickness</a></li><li><a href="article/007192.htm">Severe acute respiratory syndrome (SARS)</a></li><li><a href="patientinstructions/000978.htm">Severe COVID-19 - discharge</a></li><li><a href="article/002050.htm">Sex-linked dominant</a></li><li><a href="article/002051.htm">Sex-linked recessive</a></li><li><a href="patientinstructions/000771.htm">Sexual abuse in children - what to know</a></li><li><a href="article/007461.htm">Sexual assault - prevention</a></li><li><a href="article/001955.htm">Sexual violence</a></li><li><a href="article/007578.htm">Shaken baby syndrome</a></li><li><a href="article/002737.htm">Shampoo - swallowing</a></li><li><a href="patientinstructions/000877.htm">Shared decision making</a></li><li><a href="article/002717.htm">Shaving cream poisoning</a></li><li><a href="article/001175.htm">Sheehan syndrome</a></li><li><a href="article/002821.htm">Shellac poisoning</a></li><li><a href="article/000295.htm">Shigellosis</a></li><li><a href="patientinstructions/000654.htm">Shin splints - self-care</a></li><li><a href="article/000858.htm">Shingles</a></li><li><a href="patientinstructions/000560.htm">Shingles - aftercare</a></li><li><a href="article/000039.htm">Shock</a></li><li><a href="article/002298.htm">Short bones</a></li><li><a href="article/000237.htm">Short bowel syndrome</a></li><li><a href="article/003302.htm">Short philtrum</a></li><li><a href="article/003271.htm">Short stature</a></li><li><a href="article/007206.htm">Shoulder arthroscopy</a></li><li><a href="article/007346.htm">Shoulder CT scan</a></li><li><a href="article/007359.htm">Shoulder MRI scan</a></li><li><a href="article/003171.htm">Shoulder pain</a></li><li><a href="article/007387.htm">Shoulder replacement</a></li><li><a href="patientinstructions/000178.htm">Shoulder replacement - discharge </a></li><li><a href="patientinstructions/000562.htm">Shoulder separation - aftercare</a></li><li><a href="patientinstructions/000179.htm">Shoulder surgery - discharge </a></li><li><a href="article/003812.htm">Sialogram</a></li><li><a href="article/000161.htm">Sick sinus syndrome</a></li><li><a href="article/002200.htm">Sickle cell anemia - resources</a></li><li><a href="article/000527.htm">Sickle cell disease</a></li><li><a href="article/003666.htm">Sickle cell test</a></li><li><a href="article/002202.htm">SIDS - resources</a></li><li><a href="article/003885.htm">Sigmoidoscopy</a></li><li><a href="patientinstructions/000062.htm">Signs of an asthma attack</a></li><li><a href="article/000388.htm">Silent thyroiditis</a></li><li><a href="article/000134.htm">Silicosis </a></li><li><a href="article/001178.htm">Simple goiter</a></li><li><a href="article/007416.htm">Simple prostatectomy</a></li><li><a href="article/000105.htm">Simple pulmonary eosinophilia</a></li><li><a href="patientinstructions/000746.htm">Simple, heart-smart substitutions</a></li><li><a href="article/003290.htm">Single palmar crease</a></li><li><a href="article/007349.htm">Sinus CT scan</a></li><li><a href="article/007356.htm">Sinus MRI scan</a></li><li><a href="article/003803.htm">Sinus x-ray</a></li><li><a href="article/000647.htm">Sinusitis</a></li><li><a href="patientinstructions/000563.htm">Sinusitis in adults - aftercare</a></li><li><a href="article/002299.htm">Sitz bath</a></li><li><a href="article/000456.htm">Sjogren syndrome</a></li><li><a href="article/003170.htm">Skeletal limb abnormalities</a></li><li><a href="patientinstructions/000572.htm">Skier's thumb - aftercare</a></li><li><a href="patientinstructions/000376.htm">Skilled nursing facilities after joint replacement</a></li><li><a href="patientinstructions/000435.htm">Skilled nursing or rehabilitation facilities</a></li><li><a href="article/003216.htm">Skin - clammy</a></li><li><a href="article/000863.htm">Skin abscess</a></li><li><a href="patientinstructions/000611.htm">Skin and hair changes during pregnancy</a></li><li><a href="article/003241.htm">Skin blushing/flushing</a></li><li><a href="article/003976.htm">Skin care and incontinence</a></li><li><a href="article/002301.htm">Skin findings in newborns</a></li><li><a href="patientinstructions/000743.htm">Skin flaps and grafts - self-care</a></li><li><a href="article/002982.htm">Skin graft</a></li><li><a href="article/003451.htm">Skin lesion aspiration</a></li><li><a href="article/003840.htm">Skin lesion biopsy</a></li><li><a href="article/003761.htm">Skin lesion KOH exam</a></li><li><a href="article/000865.htm">Skin lesion of blastomycosis</a></li><li><a href="article/007673.htm">Skin lesion removal</a></li><li><a href="patientinstructions/000918.htm">Skin lesion removal - aftercare</a></li><li><a href="article/003279.htm">Skin lumps</a></li><li><a href="article/003230.htm">Skin nodules</a></li><li><a href="article/003762.htm">Skin or nail culture</a></li><li><a href="article/002135.htm">Skin sagging treatment - underarms</a></li><li><a href="patientinstructions/000711.htm">Skin self-exam</a></li><li><a href="article/003281.htm">Skin turgor</a></li><li><a href="article/000060.htm">Skull fracture</a></li><li><a href="article/003802.htm">Skull x-ray</a></li><li><a href="patientinstructions/000871.htm">Sleep and your health</a></li><li><a href="article/000800.htm">Sleep disorders</a></li><li><a href="article/000064.htm">Sleep disorders in older adults</a></li><li><a href="article/000801.htm">Sleep paralysis</a></li><li><a href="article/001362.htm">Sleeping sickness</a></li><li><a href="article/000808.htm">Sleepwalking</a></li><li><a href="article/001991.htm">Sleepwalking and children</a></li><li><a href="article/000972.htm">Slipped capital femoral epiphysis</a></li><li><a href="article/007765.htm">Slipping rib syndrome</a></li><li><a href="article/003880.htm">Slit-lamp exam</a></li><li><a href="article/000222.htm">Small bowel bacterial overgrowth</a></li><li><a href="article/002943.htm">Small bowel resection</a></li><li><a href="patientinstructions/000152.htm">Small bowel resection - discharge</a></li><li><a href="article/003732.htm">Small bowel tissue smear/biopsy</a></li><li><a href="article/002302.htm">Small for gestational age (SGA)</a></li><li><a href="article/001151.htm">Small intestinal ischemia and infarction</a></li><li><a href="article/003731.htm">Small intestine aspirate and culture</a></li><li><a href="article/001356.htm">Smallpox</a></li><li><a href="article/007786.htm">Smallpox/monkeypox vaccine (JYNNEOS) - what you need to know</a></li><li><a href="article/000018.htm">Smashed fingers</a></li><li><a href="article/003729.htm">Smear of duodenal fluid aspirate</a></li><li><a href="article/003052.htm">Smell - impaired</a></li><li><a href="patientinstructions/000504.htm">Smoking and asthma</a></li><li><a href="patientinstructions/000696.htm">Smoking and COPD</a></li><li><a href="patientinstructions/000437.htm">Smoking and surgery</a></li><li><a href="article/007439.htm">Smoking cessation medications</a></li><li><a href="patientinstructions/000322.htm">Snacking when you have diabetes</a></li><li><a href="patientinstructions/000351.htm">Snacks and sweetened drinks - children</a></li><li><a href="patientinstructions/000338.htm">Snacks for adults</a></li><li><a href="article/000031.htm">Snake bites</a></li><li><a href="article/003060.htm">Sneezing</a></li><li><a href="patientinstructions/000720.htm">Snoring - adults</a></li><li><a href="article/000957.htm">Social anxiety disorder</a></li><li><a href="article/002548.htm">Sodium bisulfate poisoning</a></li><li><a href="article/003481.htm">Sodium blood test</a></li><li><a href="article/002486.htm">Sodium carbonate poisoning</a></li><li><a href="article/002487.htm">Sodium hydroxide poisoning</a></li><li><a href="article/002488.htm">Sodium hypochlorite poisoning</a></li><li><a href="article/002415.htm">Sodium in diet</a></li><li><a href="article/003599.htm">Sodium urine test</a></li><li><a href="article/002822.htm">Solder poisoning</a></li><li><a href="article/000116.htm">Solitary fibrous tumor</a></li><li><a href="article/000071.htm">Solitary pulmonary nodule</a></li><li><a href="article/002136.htm">Soluble vs. insoluble fiber</a></li><li><a href="article/000955.htm">Somatic symptom disorder</a></li><li><a href="article/007204.htm">Soy</a></li><li><a href="article/000753.htm">Spasmodic dysphonia</a></li><li><a href="article/001409.htm">Spasmus nutans</a></li><li><a href="article/003297.htm">Spasticity</a></li><li><a href="article/001430.htm">Speech disorders - children</a></li><li><a href="article/003204.htm">Speech impairment in adults</a></li><li><a href="article/001095.htm">Spider angioma</a></li><li><a href="article/002184.htm">Spina bifida - resources</a></li><li><a href="article/007413.htm">Spinal and epidural anesthesia</a></li><li><a href="article/001405.htm">Spinal cord abscess</a></li><li><a href="article/007560.htm">Spinal cord stimulation</a></li><li><a href="article/001066.htm">Spinal cord trauma</a></li><li><a href="article/002968.htm">Spinal fusion</a></li><li><a href="article/000029.htm">Spinal injury</a></li><li><a href="article/002185.htm">Spinal injury - resources</a></li><li><a href="article/000996.htm">Spinal muscular atrophy</a></li><li><a href="article/000441.htm">Spinal stenosis</a></li><li><a href="article/001403.htm">Spinal tumor</a></li><li><a href="patientinstructions/000313.htm">Spine surgery - discharge</a></li><li><a href="patientinstructions/000754.htm">Spitting up - self-care</a></li><li><a href="article/002944.htm">Spleen removal</a></li><li><a href="patientinstructions/000277.htm">Spleen removal - child - discharge</a></li><li><a href="article/001293.htm">Splenic infarction</a></li><li><a href="article/003276.htm">Splenomegaly</a></li><li><a href="article/003283.htm">Splinter hemorrhages</a></li><li><a href="article/002137.htm">Splinter removal</a></li><li><a href="article/001260.htm">Spondylolisthesis</a></li><li><a href="article/002307.htm">Spores</a></li><li><a href="article/001338.htm">Sporotrichosis</a></li><li><a href="article/002583.htm">Sports cream overdose</a></li><li><a href="patientinstructions/000673.htm">Sports physical</a></li><li><a href="article/000041.htm">Sprains</a></li><li><a href="article/003723.htm">Sputum culture</a></li><li><a href="article/003553.htm">Sputum direct fluorescent antibody (DFA) test</a></li><li><a href="article/003736.htm">Sputum fungal smear </a></li><li><a href="article/003765.htm">Sputum Gram stain</a></li><li><a href="article/003724.htm">Sputum stain for mycobacteria</a></li><li><a href="article/000829.htm">Squamous cell skin cancer</a></li><li><a href="article/000198.htm">Stable angina</a></li><li><a href="article/003434.htm">Standard eye exam</a></li><li><a href="patientinstructions/000686.htm">Staph infections - self-care at home</a></li><li><a href="patientinstructions/000449.htm">Staph infections in the hospital</a></li><li><a href="article/000613.htm">Staphylococcal meningitis</a></li><li><a href="article/002741.htm">Starch poisoning</a></li><li><a href="article/000834.htm">Stasis dermatitis and ulcers</a></li><li><a href="patientinstructions/000377.htm">Stay active and exercise when you have arthritis</a></li><li><a href="patientinstructions/000064.htm">Stay away from asthma triggers</a></li><li><a href="patientinstructions/000924.htm">Staying safe at home</a></li><li><a href="article/002742.htm">Steam iron cleaner poisoning</a></li><li><a href="article/002303.htm">Stent</a></li><li><a href="patientinstructions/000513.htm">Steps to take before you get pregnant</a></li><li><a href="article/007274.htm">Stereotactic radiosurgery - CyberKnife</a></li><li><a href="patientinstructions/000131.htm">Stereotactic radiosurgery - discharge </a></li><li><a href="article/007577.htm">Stereotactic radiosurgery - Gamma Knife</a></li><li><a href="article/001548.htm">Stereotypic movement disorder</a></li><li><a href="patientinstructions/000119.htm">Sterile technique</a></li><li><a href="article/002138.htm">Sterilization surgery - making a decision</a></li><li><a href="article/007626.htm">Sternal exploration or closure</a></li><li><a href="article/007678.htm">Steroid injections - tendon, bursa, joint</a></li><li><a href="article/002308.htm">Stimulants</a></li><li><a href="article/002309.htm">Stimulus</a></li><li><a href="article/002853.htm">Stingray</a></li><li><a href="article/002907.htm">Stoddard solvent poisoning</a></li><li><a href="article/000223.htm">Stomach cancer</a></li><li><a href="article/002854.htm">Stonefish sting</a></li><li><a href="article/003590.htm">Stool C difficile toxin</a></li><li><a href="article/003757.htm">Stool Gram stain</a></li><li><a href="article/003393.htm">Stool guaiac test</a></li><li><a href="article/003756.htm">Stool ova and parasites exam</a></li><li><a href="article/003128.htm">Stools – floating</a></li><li><a href="article/003132.htm">Stools - foul smelling</a></li><li><a href="article/003129.htm">Stools - pale or clay-colored</a></li><li><a href="article/007440.htm">Stop smoking support programs</a></li><li><a href="patientinstructions/000534.htm">Storing your medicines</a></li><li><a href="article/001388.htm">Stork bite</a></li><li><a href="article/001004.htm">Strabismus</a></li><li><a href="article/000042.htm">Strains </a></li><li><a href="patientinstructions/000612.htm">Strategies for getting through labor</a></li><li><a href="article/000639.htm">Strep throat</a></li><li><a href="article/003745.htm">Streptococcal screen</a></li><li><a href="article/003211.htm">Stress and your health</a></li><li><a href="patientinstructions/000768.htm">Stress and your heart</a></li><li><a href="article/007150.htm">Stress echocardiography</a></li><li><a href="article/002059.htm">Stress in childhood</a></li><li><a href="article/000891.htm">Stress urinary incontinence</a></li><li><a href="article/003287.htm">Stretch marks</a></li><li><a href="article/003074.htm">Stridor</a></li><li><a href="article/003735.htm">String test for intestinal parasites</a></li><li><a href="article/000726.htm">Stroke</a></li><li><a href="patientinstructions/000132.htm">Stroke - discharge </a></li><li><a href="patientinstructions/000341.htm">Stroke risk factors</a></li><li><a href="article/000630.htm">Strongyloidiasis</a></li><li><a href="article/003049.htm">Stuffy or runny nose – adult</a></li><li><a href="article/003051.htm">Stuffy or runny nose - children</a></li><li><a href="article/001426.htm">Sturge-Weber syndrome</a></li><li><a href="article/001427.htm">Stuttering</a></li><li><a href="article/000723.htm">Subacute combined degeneration</a></li><li><a href="article/001419.htm">Subacute sclerosing panencephalitis</a></li><li><a href="article/000375.htm">Subacute thyroiditis</a></li><li><a href="article/000701.htm">Subarachnoid hemorrhage</a></li><li><a href="article/001501.htm">Subareolar abscess</a></li><li><a href="article/001616.htm">Subconjunctival hemorrhage</a></li><li><a href="article/002297.htm">Subcutaneous</a></li><li><a href="patientinstructions/000430.htm">Subcutaneous (SQ) injections</a></li><li><a href="article/003286.htm">Subcutaneous emphysema</a></li><li><a href="article/007815.htm">Subcutaneous implantable cardioverter-defibrillator</a></li><li><a href="article/001422.htm">Subdural effusion</a></li><li><a href="article/000713.htm">Subdural hematoma </a></li><li><a href="article/001945.htm">Substance use</a></li><li><a href="patientinstructions/000792.htm">Substance use - amphetamines</a></li><li><a href="patientinstructions/000793.htm">Substance use - cocaine</a></li><li><a href="patientinstructions/000794.htm">Substance use - inhalants</a></li><li><a href="patientinstructions/000795.htm">Substance use - LSD</a></li><li><a href="patientinstructions/000796.htm">Substance use - marijuana</a></li><li><a href="patientinstructions/000797.htm">Substance use - phencyclidine (PCP)</a></li><li><a href="patientinstructions/000798.htm">Substance use - prescription drugs</a></li><li><a href="article/001522.htm">Substance use disorder</a></li><li><a href="article/002149.htm">Substance use recovery and diet</a></li><li><a href="article/001566.htm">Sudden infant death syndrome</a></li><li><a href="article/003673.htm">Sugar-water hemolysis test</a></li><li><a href="article/001554.htm">Suicide and suicidal behavior</a></li><li><a href="article/002492.htm">Sulfuric acid poisoning</a></li><li><a href="article/002551.htm">Sulindac overdose</a></li><li><a href="patientinstructions/000378.htm">Sun protection</a></li><li><a href="article/003227.htm">Sunburn</a></li><li><a href="article/000199.htm">Superficial thrombophlebitis</a></li><li><a href="article/003110.htm">Supernumerary nipples</a></li><li><a href="patientinstructions/000354.htm">Supporting your child with weight loss</a></li><li><a href="article/001624.htm">Supranuclear ophthalmoplegia</a></li><li><a href="patientinstructions/000145.htm">Suprapubic catheter care</a></li><li><a href="article/007649.htm">Surgery for pancreatic cancer</a></li><li><a href="patientinstructions/000820.htm">Surgery for pancreatic cancer - discharge</a></li><li><a href="article/007591.htm">Surgery for pilonidal cyst</a></li><li><a href="article/002305.htm">Surgical excision</a></li><li><a href="patientinstructions/000738.htm">Surgical wound care - closed</a></li><li><a href="patientinstructions/000040.htm">Surgical wound care - open</a></li><li><a href="article/007645.htm">Surgical wound infection – treatment</a></li><li><a href="article/003308.htm">Sutures - ridged</a></li><li><a href="article/003307.htm">Sutures - separated</a></li><li><a href="article/001097.htm">SVC obstruction</a></li><li><a href="article/002771.htm">Swallowing chalk</a></li><li><a href="article/007543.htm">Swallowing difficulty</a></li><li><a href="patientinstructions/000065.htm">Swallowing problems </a></li><li><a href="article/002739.htm">Swallowing soap</a></li><li><a href="article/002718.htm">Swallowing sunscreen</a></li><li><a href="article/003870.htm">Swan-Ganz - right heart catheterization</a></li><li><a href="article/003630.htm">Sweat electrolytes test</a></li><li><a href="article/003218.htm">Sweating</a></li><li><a href="patientinstructions/000335.htm">Sweetened beverages</a></li><li><a href="article/007492.htm">Sweeteners - sugar substitutes</a></li><li><a href="article/002444.htm">Sweeteners - sugars</a></li><li><a href="article/003103.htm">Swelling</a></li><li><a href="article/000622.htm">Swimmer's ear </a></li><li><a href="article/002839.htm">Swimming pool cleaner poisoning</a></li><li><a href="article/001357.htm">Swimming pool granuloma</a></li><li><a href="article/003097.htm">Swollen lymph nodes</a></li><li><a href="article/001358.htm">Sydenham chorea</a></li><li><a href="article/002293.htm">Symptomatic</a></li><li><a href="article/000314.htm">Syndrome of inappropriate antidiuretic hormone secretion</a></li><li><a href="article/003922.htm">Synovial biopsy</a></li><li><a href="article/003629.htm">Synovial fluid analysis</a></li><li><a href="article/000861.htm">Syphilis</a></li><li><a href="article/000724.htm">Syphilitic aseptic meningitis</a></li><li><a href="article/001398.htm">Syringomyelia</a></li><li><a href="article/002294.htm">Systemic</a></li><li><a href="article/000435.htm">Systemic lupus erythematosus</a></li></ul></div></article>
|
||
</div>
|
||
|
||
|
||
<footer>
|
||
|
||
<div class="provider-box group">
|
||
<div class="urac-logo">
|
||
<a href="https://accreditnet.urac.org/directory/#/certification/HCP-2/info"><img src="https://medlineplus.gov/images/CertifiedSeal.png"/></a>
|
||
<p class="urac-logo-info">Health Content Provider<br>06/01/2025</p>
|
||
</div>
|
||
<p class="adam-info">
|
||
<a href='javascript:urac_open();'>A.D.A.M., Inc. is accredited by URAC</a>, for Health Content Provider (www.urac.org). URAC's <a href='javascript:hwsopen();'>accreditation program</a> is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s <a href='javascript:edpolopen();'>editorial policy, editorial process</a>, and <a href='javascript:ppopen();'>privacy policy</a>. A.D.A.M. is also a founding member of Hi-Ethics. This site complies with the HONcode standard for trustworthy health information: <a href='javascript:honc_open();'>verify here</a>.
|
||
</p>
|
||
</div>
|
||
<p class="adam-info">
|
||
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only – they do not constitute endorsements of those other sites. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language. © 1997-2025 A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
|
||
</p>
|
||
<div class="adam-logo">
|
||
<a href="https://www.adam.com/about" target="_blank"><img width="49" height="10" alt="About A.D.A.M." src="https://medlineplus.gov/ency/images/ency/ftrAdamlogo.gif"/></a>
|
||
</div>
|
||
<div id="mplus-footer">
|
||
<div class="footer1">
|
||
<ul class="secondarynav">
|
||
<li><a href="https://medlineplus.gov/about/">About MedlinePlus</a></li>
|
||
<li><a href="https://medlineplus.gov/whatsnew/">What's New</a></li>
|
||
<li><a href="https://medlineplus.gov/sitemap.html">Site Map</a></li>
|
||
<li><a name="contact" target="_blank" href="https://support.nlm.nih.gov/knowledgebase/category/?id=CAT-01231&category=medlineplus&from="><span>Customer Support</span></a></li>
|
||
</ul>
|
||
<ul class="follow-footer">
|
||
<li><a href="https://medlineplus.gov/rss.html" class="follow-item">Subscribe to RSS<img src="https://medlineplus.gov/images/feed.png" class="social-media-toolkit-icon" alt="RSS" title="RSS"></a></li>
|
||
<li><span class="follow-label">Follow us</span>
|
||
<a href="https://twitter.com/medlineplus" class="follow-item" target="_blank"><img src="https://medlineplus.gov/images/i_share_twitter.png" class="follow-icon" alt="X" title="X"></a>
|
||
<a href="https://facebook.com/Mplus.gov/" class="follow-item" target="_blank"><img src="https://medlineplus.gov/images/i_share_fb.png" class="follow-icon" alt="Facebook" title="Facebook"></a>
|
||
<a href="https://www.instagram.com/mplusgov/" class="follow-item" target="_blank"><img src="https://medlineplus.gov/images/Instagram_Glyph_Gradient_RGB.png" class="follow-icon" alt="Instagram" title="Instagram"></a>
|
||
</li>
|
||
<li><a href="https://medlineplus.gov/social-media-toolkit/" class="social-media-toolkit-item">Social Media Toolkit<img src="https://medlineplus.gov/images/i_social_media_toolkit.png" class="social-media-toolkit-icon" alt="Social Media Toolkit" title="Social Media Toolkit"></a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="footer2">
|
||
<ul>
|
||
<li><a href="https://www.nlm.nih.gov/web_policies.html" target="_blank">NLM Web Policies</a></li>
|
||
<li><a href="https://medlineplus.gov/about/using/usingcontent/" >Copyright</a></li>
|
||
<li><a href="//medlineplus.gov/accessibility.html">Accessibility</a></li>
|
||
<li><a href="https://medlineplus.gov/about/using/criteria/">Guidelines for Links</a></li>
|
||
<li><a href="//medlineplus.gov/plugins.html">Viewers & Players</a></li>
|
||
<li><a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html" target="_blank">HHS Vulnerability Disclosure</a></li>
|
||
<li><a href="https://medlineplus.gov/medlineplus-connect/">MedlinePlus Connect for EHRs</a></li>
|
||
<li><a href="https://medlineplus.gov/about/developers/">For Developers</a></li>
|
||
</ul>
|
||
<div class="address">
|
||
<a href="//www.nlm.nih.gov" target="_blank">National Library of Medicine</a>
|
||
<span>8600 Rockville Pike, Bethesda, MD 20894</span>
|
||
<a href="//www.hhs.gov" target="_blank">U.S. Department of Health and Human Services</a>
|
||
<a href="//www.nih.gov" target="_blank">National Institutes of Health</a>
|
||
</div>
|
||
<div class="return-top"><a href="#top" title="Return to top"><img class="return-top-icon" alt="Return to top" src="https://medlineplus.gov/images/return-top.png"></a></div>
|
||
</div>
|
||
</div>
|
||
|
||
</footer>
|
||
</div><!-- End Wrap -->
|
||
|
||
<script src="https://medlineplus.gov/jslib/jquery-3.6.0.min.js" type="text/javascript">
|
||
</script>
|
||
<script src="https://medlineplus.gov/jslib/mplus-frontend-controls.js" type="text/javascript">
|
||
</script>
|
||
|
||
<!--[if lte IE 9]>
|
||
<script src="https://medlineplus.gov/jslib/jquery.placeholder.js" type="text/javascript"></script>
|
||
<![endif]-->
|
||
|
||
<script src="https://medlineplus.gov/jslib/mplus-share.js?id=1112022" type="text/javascript">
|
||
</script>
|
||
<script src="https://medlineplus.gov/jslib/control.js" type="text/javascript">
|
||
</script>
|
||
<script src="https://medlineplus.gov/uswds/js/uswds.min.js" type="text/javascript">
|
||
</script>
|
||
<script src="https://medlineplus.gov/jslib/ency/ency.js" type="text/javascript">
|
||
</script>
|
||
</body>
|
||
</html> |