Colonoscopy

Colonoscopy is a medical procedure used to examine the inner lining of the large intestine (colon) and rectum. It uses a flexible, lighted tube (colonoscope) to look for abnormalities, such as polyps, ulcers, and tumors. Colonoscopy allows doctors to diagnose colorectal cancer and other diseases and can also be used to detect and remove precancerous growths in the large intestine. This procedure can be used to screen for colorectal cancer, as well as to diagnose and treat intestinal diseases, such as ulcerative colitis and diverticular disease.