A colonoscope is a thin (10mm) tube with a lighted camera. It also has channels that allow different instruments, like small forceps for biopsies or snares to remove polyps, to be passed into your colon during the exam. This makes the colonoscope a tool that helps us both detect and remove polyps during the same procedure. It is used by gastroenterologists, like Dr. Havranek, to treat colon bleeding, remove polyps, detect colon cancer, and remove foreign objects.