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</div><div><span>Colorectal polyps</span></div></div>
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<article><div id="d-article"><div class="page-info"><div class="page-title"><a name="start" id="start">
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</a><h1 class="with-also" itemprop="name">Colorectal polyps</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>A colorectal polyp is a growth on the lining of the colon or rectum.</p></div><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-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>Polyps of the colon and rectum are most often <a test="test" href="./002236.htm">benign</a>. This means they are not a cancer. You may have one or many polyps. They become more common with age. There are many types of polyps.</p><p>Adenomatous polyps are a common type. They are gland-like growths that develop on the mucous membrane that lines the large intestine. They are also called adenomas and are most often one of the following:</p><ul><li>Tubular polyp, which protrudes out in the lumen (open space) of the colon</li><li>Villous adenoma, which is sometimes flat and spreading, and is more likely to become a cancer </li></ul><p>When adenomas become cancerous, they are known as adenocarcinomas. Adenocarcinomas are cancers that originate in glandular tissue cells. Adenocarcinoma is the most common type of colorectal cancer.</p><p>Other types of polyps are:</p><ul><li>Hyperplastic polyps, which rarely, if ever, develop into cancer</li><li>Serrated polyps, which are less common, but may develop into cancer over time </li></ul><p>Polyps that are 1 centimeter (cm) or larger have a higher cancer risk than polyps smaller than 1 cm. Risk factors include:</p><ul><li>Age</li><li>Family history of colon cancer or polyps</li><li>A type of polyp called villous adenoma </li></ul><p>A small number of people with polyps may also be linked to some inherited disorders, including:</p><ul><li>Familial adenomatous polyposis (FAP)</li><li>Gardner syndrome (a type of FAP)</li><li>Juvenile polyposis, a disease that causes many benign growths in the intestine, usually before 20 years old</li><li>Hereditary non-polyposis colorectal cancer (HNPCC), also called Lynch syndrome, a disease that raises the chance of many types of cancer, including in the intestine</li><li><a test="test" href="./000244.htm">Peutz-Jeghers syndrome</a>, a disease that causes intestinal polyps, usually in the small intestine and usually benign</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</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>Polyps usually do not have symptoms. When present, symptoms may include:</p><ul><li><a test="test" href="./003130.htm">Blood in the stools</a></li><li>Change in bowel habit</li><li>Fatigue caused by losing blood over time </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</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>Your health care provider will perform a physical exam. A large polyp in the rectum may be felt during a rectal exam.</p><p>Most polyps are found with the following tests:</p><ul><li><a test="test" href="./003817.htm">Barium enema</a> (rarely done)</li><li><a test="test" href="./003886.htm">Colonoscopy</a></li><li><a test="test" href="./003885.htm">Sigmoidoscopy</a></li><li><a test="test" href="./003393.htm">Stool test</a> for hidden (occult) blood</li><li><a test="test" href="./007253.htm">Virtual colonoscopy</a></li><li>Stool DNA test</li><li><a test="test" href="../patientinstructions/000704.htm">Fecal immunochemical test (FIT)</a></li></ul><img title="Barium enema" alt="Barium enema" src="//medlineplus.gov/ency/images/ency/fullsize/24492.jpg" class="img-e" itemprop="image"/><img title="Colonoscopy" alt="Colonoscopy" src="//medlineplus.gov/ency/images/ency/fullsize/1083.jpg" class="img-e" itemprop="image"/></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</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>Colorectal polyps should be removed because some can develop into <a test="test" href="./000262.htm">cancer</a>. In most cases, the polyps may be removed during a colonoscopy.</p><p>For people with adenomatous polyps, new polyps can appear in the future. You should have a repeat colonoscopy, usually 1 to 10 years later, depending on:</p><ul><li>Your age and general health</li><li>Number of polyps you had </li><li>Size and type of the polyps</li><li>Family history of polyps or cancer</li></ul><p>In rare cases, when polyps are very likely to turn into cancer or too large to remove during colonoscopy, the provider will recommend a partial <a test="test" href="./002941.htm">colectomy</a>. This is surgery to remove part of the colon that has the polyps.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>The outlook is excellent if the polyps are removed. Polyps that are not removed can develop into cancer over time.</p></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-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Contact your provider if you have:</p><ul><li>Blood in a bowel movement</li><li>Change in bowel habits</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Prevention</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>To reduce your risk of developing polyps:</p><ul><li>Eat foods low in fat and eat more fruits, vegetables, and fiber.</li><li>Do not smoke and do not drink alcohol in excess.</li><li>Maintain a normal body weight.</li><li>Get regular exercise. </li></ul><p>Your provider can order a colonoscopy or other <a test="test" href="./002071.htm">screening tests</a>: </p><ul><li>These tests help prevent colon cancer by finding and removing polyps before they become cancer. This may reduce the chance of developing colon cancer, or at least help catch it in its most treatable stage.</li><li>All adults should begin one of these tests at age 45.</li></ul><p>Taking aspirin, naproxen, ibuprofen, or similar medicines may help reduce the risk for new polyps. Be aware that these medicines can have serious side effects if taken for a long time. Side effects include bleeding in the stomach or colon and heart disease. Talk with your provider before taking these medicines.</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>Intestinal polyps; Polyps - colorectal; Adenomatous polyps; Hyperplastic polyps; Villous adenomas; Serrated polyp; Serrated adenoma; Precancerous polyps; Colon cancer - polyps; Bleeding - colorectal polyps</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" 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>Centers for Disease Control and Prevention. Colorectal cancer. Reducing risk for colorectal cancer. <a href="https://www.cdc.gov/colorectal-cancer/prevention/" target="_blank">www.cdc.gov/colorectal-cancer/prevention/</a>. Updated June 12, 2024. Accessed June 17, 2024.</p><p>Garber JJ, Chung DC. Colonic polyps and polyposis syndromes. 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 126.</p><p>National Cancer Institute website. Colorectal cancer prevention (PDQ) - health professional version. <a href="https://www.cancer.gov/types/colorectal/hp/colorectal-prevention-pdq" target="_blank">www.cancer.gov/types/colorectal/hp/colorectal-prevention-pdq</a>. Updated August 18, 2023. Accessed February 11, 2024.</p><p>National Comprehensive Cancer Network website. NCCN clinical practice guidelines in oncology (NCCN guidelines): colorectal cancer screening. Version 1.2023 - May 17, 2023. <a href="https://www.nccn.org/professionals/physician_gls/pdf/colorectal_screening.pdf" target="_blank">www.nccn.org/professionals/physician_gls/pdf/colorectal_screening.pdf</a>. Updated May 17, 2023. Accessed February 11, 2024.</p><p>Patel SG, May FP, Anderson JC, et al. Updates on age to start and stop colorectal cancer screening: recommendations from the U.S. Multi-Society Task Force on Colorectal Cancer. <em>Gastrointest Endosc</em>. 2022;95(1):1-15. PMID: 34794803 <a href="https://pubmed.ncbi.nlm.nih.gov/34794803/" target="_blank">pubmed.ncbi.nlm.nih.gov/34794803/</a>.</p><p>Qaseem A, Crandall CJ, Mustafa RA, Hicks LA, Wilt TJ. Clinical Guidelines Committee of the American College of Physicians, et al. Screening for colorectal cancer in asymptomatic average-risk adults: a guidance statement from the American College of Physicians. <em>Ann Intern Med</em>. 2019;171(9):643-654. PMID: 31683290 <a href="https://pubmed.ncbi.nlm.nih.gov/31683290/" target="_blank">pubmed.ncbi.nlm.nih.gov/31683290/</a>.</p><p>US Preventive Services Task Force website. Final recommendation statement. Colorectal cancer: screening. <a href="https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/colorectal-cancer-screening" target="_blank">www.uspreventiveservicestaskforce.org/uspstf/recommendation/colorectal-cancer-screening</a>. Published May 18, 2021. Accessed February 11, 2024.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 5/2/2023</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Internal review and update on 02/10/2024 by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.</p>
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