human
My doctor says I need to get a colonoscopy, but I've never had one. What should I expect?
assistant
A colonoscopy is a procedure that involves inserting a thin tube into the rectum and passing it through the entire length of the large intestine. The tube has a camera on the end so doctors can examine the inside of your digestive system. It is usually done in a hospital or medical center by a gastroenterologist or other specialist. You will be given sedatives to help you relax during the procedure. Afterward, you may experience some discomfort and cramping for a few days.