Flexible Sigmoidoscopy

Flexible sigmoidoscopy is a minimally invasive medical examination that enables clinicians to look at the inside of the large intestine from the rectum through the last part of the colon, called the sigmoidis.

A sigmoidoscopy is similar to a Colonoscopy, with the difference being related to which parts of the colon each can examine. A colonoscopy allows an examination of the entire colon (1200–1500 mm in length). A sigmoidoscopy allows an examination of the distal portion (about 600 mm) of the colon, which may be sufficient because benefits to cancer survival of colonoscopy have been limited to the detection of lesions in the distal portion of the colon.

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