What Is an Endoscopy?
6. Colonoscopy
A colonoscopy is an endoscopic procedure that is used to inspect the entire large bowel, from the distal rectum to the cecum, and the distal part of the small bowel (terminal ileum) with the use of an endoscope (a special camera on a flexible tube) that is advanced through the anus.
It is used both diagnostically and therapeutically and permits the examination and treatment of many conditions of the lower gastrointestinal tract. Indications for colonoscopy include the screening, assessment, and follow-up of colorectal cancer (CRC); management of IBS (ulcerative colitis and Crohn’s disease); and assessment or treatment of acute hemorrhages. Recommendations for CRC screening in average-risk patients, state that screening should start at age 50 years. This screening procedure should be repeated every 10 years.
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