human
My doctor says I need a colonoscopy. What does that involve?
assistant
A colonoscopy involves the insertion of a thin, flexible tube called an endoscope into your rectum and colon. The endoscope is used to examine the inside of your colon for any signs of disease or polyps (growths). It also allows your doctor to take biopsies (tissue samples) from suspicious areas. After the procedure, you may experience some cramping and bloating for a few days.