The entire test should last 20 to 60 minutes. This piece is looked at later under a microscope. If the doctor finds an area of bleeding, it can be controlled by applying medicines through the endoscope directly onto the area of bleeding. You will not feel this treatment. If the doctor finds polyps on the lining of the colon, they may be removed.
Polyps vary in size from a tiny dot to several inches.
For this reason, if the doctor removes a polyp, it is sent for further tests. Removal of polyps is an important way of preventing colon cancer. After the colonoscopy you will be taken to the recovery room to relax. A nurse will check your blood pressure and heart rate as you rest. You will wake up in about one hour.