human
My doctor says that I have to have a colonoscopy. What is a colonoscopy?
assistant
A colonoscopy is a procedure used to examine the inside of your colon. It involves inserting a thin, flexible tube called an endoscope into the rectum and slowly moving it through the colon. The endoscope has a camera on the tip which allows doctors to see the inside of the colon. During the examination, the doctor may take tissue samples or remove polyps (growths) from the colon.