Reviewed by Varnada Karriem-Norwood on May 17, 2012


Medline Plus. Cleveland Clinic.

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Video Transcript

: Colonscopy

Narrator: Whether you are fifty years old and due for routine colorectal cancer screening, have a family history of colorectal cancer, or have abdominal pain or blood in the stool, your doctor may perform a colonoscopy to examine the inside of your large intestine, or colon. During the procedure, your doctor will use a colonoscope, a long flexible tube with a small camera and a light on its tip. Your doctor will insert the colonoscope and guide it through the entire length of your colon. As your doctor slowly removes the colonoscope, he or she will closely inspect the walls of your colon by viewing video images transmitted to a monitor from the camera. In some cases, your doctor may take a biopsy and send it to a laboratory for further analysis. If polyps are discovered, your doctor will remove them with an endoscopic snare. At the end of the procedure, your doctor will remove the colonoscope, and you will be monitored to ensure the sedative has worn off.