human
My doctor wants me to get a colonoscopy. What is that, and what should I expect?
assistant
A colonoscopy is an endoscopic procedure used to visualize the inside of the large intestine. It involves inserting a flexible tube into the rectum and slowly advancing it through the entire length of the colon. The procedure can be uncomfortable, but it's usually done under sedation. During the exam, the doctor will look for signs of polyps or other abnormalities in the colon. Afterward, you may experience some bloating or cramping, but this should pass quickly.