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You may start the examination mendacity in your facet on the examination desk, often along with your knees drawn towards your chest. The physician will insert a colonoscope into your rectum. The scope - which is lengthy sufficient to succeed in the whole size of your colon - comprises a gentle and a tube (channel) that permits the physician to pump air into your colon. The air inflates the colon, which supplies a greater view of the lining of the colon. When the scope is moved or air is launched, chances are you'll really feel abdominal cramping or the urge to have a bowel motion. The colonoscope additionally comprises a tiny video digital camera at its tip. The digital camera sends photos to an exterior monitor so that may examine the inside of colon. The physician also can insert devices by means of the channel to take tissue samples (biopsies) or take away polyps or different areas of abnormal tissue. A colonoscopy usually takes about 30 to 60 minutes.

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