Lower GI Endoscopy + Biopsy A lower GI endoscopy, also known as a colonoscopy or sigmoidoscopy, is a procedure to visually examine the lower digestive system, including the colon and rectum. A biopsy may be performed during the procedure to collect tissue samples. What to Expect - Preparation: Bowel preparation, which may include laxatives or enemas, to clear the colon. - Procedure: A flexible tube with a camera is inserted through the rectum to visualize the colon and rectum. A biopsy may be performed to collect tissue samples. - Results: The collected tissue samples are sent to a laboratory for analysis. Benefits - Diagnostic Accuracy: Lower GI endoscopy with biopsy can help diagnose conditions such as colon polyps, cancer, and inflammatory bowel disease. - Polyp Removal: Polyps can be removed during the procedure to prevent cancer. Potential Risks - Bleeding: A small risk of bleeding from the biopsy site or polyp removal. - Perforation: A rare risk of perforation of the colon.