Recommended for all patients over 50, colonoscopy is a safe, simple, highly effective method of screening for colon cancer, polyps, and other conditions in the colon. Using a long, flexible, lighted tubular instrument called a colonoscope, we observe the rectum and the entire lining of the large intestine (colon) right here in our office. The procedure is performed using conscious sedation and is relatively pain-free. Patients go home the same day.