human
My doctor says I need a colonoscopy. How does this work?
assistant
A colonoscopy is a procedure in which a doctor uses a thin, flexible tube called a colonoscope to look inside your colon. The doctor will insert the tube into your rectum and then slowly move it up through your colon. The doctor will use the scope to examine the lining of your colon for any abnormal growths or polyps. If anything suspicious is found, the doctor can remove it during the procedure.