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</div><div><span>Endoscopy</span></div></div>
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</noscript></div><div class="main"><div id="ency_summary"><p>Endoscopy is a way of looking inside the body using a flexible tube that has a small camera and light on the end of it. This instrument is called an endoscope.</p><p>Small instruments can be inserted through an endoscope and used to:</p><ul><li>Look more closely at an area inside the body</li><li>Take samples of abnormal tissues (biopsy)</li><li>Treat certain diseases</li><li>Remove tumors</li><li>Stop bleeding</li><li>Remove foreign bodies (such as food stuck in the esophagus, the tube that connects your throat to your stomach) </li></ul></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test is Performed</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>An endoscope is passed through a natural body opening or small cut. There are many types of endoscopes. Each one is named according to the organs or areas they are used to examine.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How to Prepare for the Test</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>Preparation for the procedure varies depending on the test. For example, there is no preparation needed for anoscopy. But a special diet and laxatives are needed to prepare for a colonoscopy. Follow your health care provider's instructions.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test will Feel</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>All of these tests may cause discomfort or pain. Some are done after sedatives and pain medicines are given. Check with your provider about what to expect.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Why the Test is Performed</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>Each endoscopy test is done for different reasons. Endoscopy is most often used to examine and treat parts of the digestive tract, such as:</p><ul><li><a test="test" href="./003890.htm">Anoscopy</a> views the inside of the anus, the very lowest part of the colon.</li><li><a test="test" href="./003886.htm">Colonoscopy</a> views the inside of the colon (large intestine) and rectum.</li><li><a test="test" href="./003889.htm">Enteroscopy</a> views the inside of the small intestine (small bowel).</li><li><a test="test" href="./007479.htm">ERCP</a> (endoscopic retrograde cholangiopancreatography) views the biliary tract, small tubes that drain the gallbladder, liver, and pancreas.</li><li><a test="test" href="./003885.htm">Sigmoidoscopy</a> views the inside of the lower part of the colon called the sigmoid colon and rectum.</li><li><a test="test" href="./003888.htm">Upper endoscopy</a> (esophagogastroduodenoscopy, or EGD) views the inside of the esophagus, stomach, and first part of the small intestine (called the duodenum).</li><li><a test="test" href="./003857.htm">Bronchoscopy</a> is used to look in the airways (windpipe, or trachea) and lungs.</li><li><a test="test" href="./003903.htm">Cystoscopy</a> is used to view the inside of the bladder. The scope is passed through the opening of the urethra.</li><li><a test="test" href="./003918.htm">Laparoscopy</a> is used to look directly at the ovaries, appendix, or other abdominal organs. The scope is inserted through small surgical cuts in the pelvic or belly area. Tumors or organs in the abdomen or pelvis can be removed. </li><li>Arthroscopy is used to look directly in the joints, such as the <a test="test" href="./002972.htm">knee</a>. The scope is inserted through small surgical cuts around the joint. Problems with bones, tendons, ligaments can be treated.</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Risks</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>Each endoscopy test has its own risks. Your provider will explain the risks to you before the procedure.</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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<li><img src="//medlineplus.gov/ency/images/ency/tnails/1083t.jpg" alt="Colonoscopy" title="Colonoscopy" class="side-img"/><a href="../imagepages/1083.htm">Colonoscopy</a></li>
</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>Phillips BB. General principles of arthroscopy. In: Azar FM, Beaty JH, eds. <em>Campbell's Operative Orthopaedics.</em> 14th ed. Philadelphia, PA: Elsevier; 2021:chap 49.</p><p>Raymond L, Lentz GM. Endoscopy in minimally invasive gynecologic surgery. In: Gershenson DM, Lentz GM, Valea FA, Lobo RA, eds. <em>Comprehensive Gynecology.</em> 8th ed. Philadelphia, PA: Elsevier; 2022:chap 10.</p><p>Sugumar A, Vargo JJ. Preparation for and complications of gastrointestinal endoscopy. 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 42.</p><p>Yu DH, Feller-Kopman D. Tracheobronchial endoscopy. In: Flint PW, Francis HW, Haughey BH, et al, eds. <em>Cummings Otolaryngology: Head and Neck Surgery. </em>7th ed. Philadelphia, PA: Elsevier; 2021:chap 71.</p></div></div></section>
<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 5/3/2023</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. 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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