Colonoscopy (colon cancer screening)
A colonoscopy may take 15–30 minutes to complete, but the entire visit (including prep and wait time) can take 1 hour or more. During your colonoscopy, your doctor will use a long, thin, flexible tube with a small camera to look at the inside of your colon. The tube will enter the opening to your intestine (the anus) and move into the lower parts of the large intestine (the rectum and then the colon). Special tools can be passed through the tube to take samples or remove any areas of concern. Your care team will let you know what you can do to ease any discomfort you may feel after the procedure.
Before your colonoscopy, talk with your doctor about: