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</a><h1 class="with-also" itemprop="name">Black or tarry stools</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>Black or tarry stools with a foul smell are a sign of a problem in the upper digestive tract. It most often indicates that there is bleeding in the esophagus, stomach, or first part of the small intestine.</p><p>The term melena is used to describe this finding.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Considerations</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>Eating black licorice, blueberries, blood sausage or taking iron pills, activated charcoal, or medicines that contain bismuth (such as Pepto-Bismol), can also cause black stools. Beets and foods with red coloring can sometimes make stools appear reddish. In all these cases, your health care provider can test the stool with a chemical to check for the presence of blood.</p><p>Bleeding in the esophagus or stomach (such as with peptic ulcer disease) can also cause you to vomit blood.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>The color of the blood in the stools can indicate the source of bleeding.
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</p><ul><li>Black or tarry stools may be due to bleeding in the upper part of the GI (gastrointestinal) tract, such as the esophagus, stomach, or the first part of the small intestine. In this case, blood is darker because it gets digested on its way through the GI tract.</li><li>Red or fresh blood in the stools (<a test="test" href="./007741.htm">rectal bleeding</a>), most often is a sign of bleeding from the lower GI tract (colon, rectum, or anus).</li></ul><img title="Abdominal organs" alt="Abdominal organs" src="//medlineplus.gov/ency/images/ency/fullsize/19574.jpg" class="img-e" itemprop="image"/><p><a test="test" href="./000206.htm">Peptic ulcers</a> are the most common cause of acute upper GI bleeding. Black and tarry stools may also occur due to:</p><ul><li>Abnormal blood vessels in the esophagus, stomach, or duodenum</li><li>A tear in the esophagus from violent vomiting (<a test="test" href="./000269.htm">Mallory-Weiss tear</a>)</li><li>Blood supply being cut off to part of the intestines</li><li>Inflammation of the stomach lining (<a test="test" href="./001150.htm">gastritis</a>)</li><li>Trauma or foreign body</li><li>Widened, overgrown veins (called <a test="test" href="./000268.htm">varices</a>) in the esophagus and stomach, commonly caused by <a test="test" href="./000255.htm">liver cirrhosis</a></li><li>Cancer of the esophagus, stomach, duodenum, or ampulla of Vater</li></ul><img title="Ulcer emergencies" alt="Ulcer emergencies" src="//medlineplus.gov/ency/images/ency/fullsize/19235.jpg" class="img-e" itemprop="image"/></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>Contact your health care provider right away if:</p><ul><li>You notice blood or changes in the color of your stool</li><li>You <a test="test" href="./003118.htm">vomit blood</a></li><li>You feel <a test="test" href="./003093.htm">dizzy</a> or lightheaded</li></ul><p>In children, a small amount of blood in the stool is most often not serious. The most common cause is constipation. You should still tell your child's provider if you notice this problem.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>What to Expect at Your Office Visit</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>Your provider will take a medical history and perform a physical exam. The exam will focus on your abdomen.</p><p>You may be asked the following questions:</p><ul><li>Are you taking blood thinners, or anti-platelet medicines, such as aspirin, warfarin, Eliquis, Pradaxa, Xarelto, or clopidogrel, or similar medicines? Are you taking an NSAID, such as ibuprofen or naproxen?</li><li>Have you had any trauma or swallowed a foreign object accidentally?</li><li>Have you eaten black licorice, iron, Pepto-Bismol, or blueberries?</li><li>Have you had more than one episode of blood in your stool? Is every stool this way?</li><li>Have you lost any weight recently?</li><li>Is there blood on the toilet paper only?</li><li>What color is the stool?</li><li>When did the problem develop?</li><li>What other symptoms are present (<a test="test" href="./003120.htm">abdominal pain</a>, vomiting blood, <a test="test" href="./003123.htm">bloating</a>, <a test="test" href="./003124.htm">excessive gas</a>, <a test="test" href="./003126.htm">diarrhea</a>, or <a test="test" href="./003090.htm">fever</a>)?</li></ul><p>You may need to have one or more tests to look for the cause:</p><ul><li><a test="test" href="./003327.htm">Angiography</a></li><li>CT or MRI angiography<br/></li><li><a test="test" href="./003835.htm">Bleeding scan</a> (nuclear medicine)</li><li>Blood studies, including a <a test="test" href="./003642.htm">complete blood count</a> (CBC) and <a test="test" href="./003657.htm">differential</a>, <a test="test" href="./002350.htm">serum chemistries</a>, clotting studies</li><li><a test="test" href="./003886.htm">Colonoscopy</a></li><li><a test="test" href="./003888.htm">Esophagogastroduodenoscopy</a> or EGD</li><li><a test="test" href="./003758.htm">Stool culture</a> or multiplex PCR test of stool to test for infection</li><li><a test="test" href="./007501.htm">Tests</a> for the presence of <em>Helicobacter pylori</em> infection</li><li><a test="test" href="./007642.htm">Capsule endoscopy</a> (a pill with a built in camera that takes a video of the small intestine)</li><li>Double balloon enteroscopy (a scope that can reach the parts of the small intestine that are not able to be reached with EGD or colonoscopy)</li></ul><p>Severe cases of bleeding that cause excessive blood loss and a drop in blood pressure may require surgery or hospitalization.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Stools - bloody; Melena; Stools - black or tarry; Upper gastrointestinal bleeding; Melenic stools</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Patient Instructions</h2></div><div class="section-button"><button type="submit" aria-controls="section-carepnt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>DeGeorge LM, Nable JV. Gastrointestinal bleeding. In: Walls RM, ed. <em>Rosen's Emergency Medicine: Concepts and Clinical Practice</em>. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 26.</p><p>Kovacs TO, Jensen DM. Gastrointestinal hemorrhage. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 121.</p><p>Savides TJ, Jensen DM. Gastrointestinal bleeding. In: Feldman M, Friedman LS, Brandt LJ, eds.<em> Sleisenger and Fordtran's Gastrointestinal and Liver Disease</em>. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 20.</p></div></div></section>
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<div id="section-version" class="section-body"><p>Updated by: Jenifer K. Lehrer, MD, Department of Gastroenterology, Aria - Jefferson Health Torresdale, Jefferson Digestive Diseases Network, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. </p>
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