human
My doctor says I need to have a colonoscopy. What is it like?
assistant
It’s a procedure where the doctor inserts a tube into your rectum and then uses a camera to examine the inside of your colon. The doctor may also use other tools, such as a scope, to take samples of tissue for testing. The procedure usually takes about 30 minutes, but can be longer if more extensive testing is needed. You will likely receive medication to help you relax during the test.