Colonoscopy - Overview - Mayo Clinic
https://www.mayoclinic.org/tests-procedures/colonoscopy/about/home/ovc-20393563
WEBFeb 28, 2024 · Overview. A colonoscopy (koe-lun-OS-kuh-pee) is an exam used to look for changes — such as swollen, irritated tissues, polyps or cancer — in the large intestine (colon) and rectum. During a colonoscopy, a long, flexible tube (colonoscope) is inserted into the rectum. A tiny video camera at the tip of the tube allows the doctor to view the ...
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