human
My doctor wants me to get a colonoscopy. How does that work?
assistant
A colonoscopy is an examination of the large intestine using a long, flexible tube with a camera on the end. It is done to check for polyps and other abnormalities in the colon. The doctor inserts the tube into the rectum and then slowly moves it through the colon. The procedure takes about 30 minutes. You will be given a sedative to help you relax during the procedure. After the procedure, you may feel tired or sore for a few days.