human
My doctor says I should get a colonoscopy. What is it?
assistant
A colonoscopy is a procedure that uses an endoscope (a long, flexible tube with a camera) to examine the inside of your colon. The doctor will insert the endoscope into your rectum and then move it up through your colon to your cecum, where the appendix is located. The doctor will use the endoscope to take pictures of any polyps or other abnormalities that may be present in your colon.