Colonoscopy Risks and Benefits

A colonoscopy is a procedure that involves an examination of the entire colon and requires bowel preparation and sedation. Screening tests are done to detect or prevent cancer in asymptomatic patients; when concerning signs or symptoms are present, diagnostic testing should be performed. There are a number of stool-based, endoscopic, or radiologic tests available for Colorectal cancer (CRC) screening, though choice may be driven by patient preference and local availability. Watch this video to learn about the purpose and benefits of the exam, how the colonoscopy procedure is performed, and the potential risks and complications.