Colonoscopy is a common, safe test to examine the lining of the large bowel. During a colonoscopy, doctors who are trained in this procedure (endoscopists) can also see part of the small intestine (small bowel) and the end of the GI tract (the rectum).

 

This procedure is often done under sedation to assure maximal patient comfort. During a colonoscopy, the endoscopist uses a flexible tube, about the width of your index finger, fitted with a miniature camera and light source.

 

This device is connected to a video monitor that the doctor watches while performing the test. Various miniaturized tools can be inserted through the scope to help the doctor obtain samples (biopsies) of the colon and to perform manoeuvres to diagnose or treat conditions. Colonoscopy can detect and sometimes treat polyps, colorectal bleeding, fissures, strictures, fistulas, foreign bodies, Crohn’s Disease, and colorectal cancer. An examination of the inside of the colon, including the rectum, sigmoid colon, descending colon, transverse colon, ascending colon, and cecum (where the small bowel attaches to the large bowel), using an endoscope – a thin, lighted flexible tube inserted through the anus.

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