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Center For Digestive Disorders
What is a Flexible Sigmoidoscopy?
Flexible sigmoidoscopy is a procedure that enables your physician to examine the lining of the rectum and colon
(large bowel) by inserting a flexible tube that is about the thickness of your finger into the anus and advancing
it slowly into the rectum and lower part of the colon. If the doctor sees an area that needs evaluation in greater
detail, a biopsy (sample of the colon lining) may be obtained and submitted to a laboratory for analysis. If polyps
are found, they can be biopsied, but are not removed at the time of the sigmoidoscopy. The doctor performing the
exam will likely request that you have a colonoscopy (a complete examination of the colon) to remove any large
polyp that is found. Colonoscopy can also check the remainder of your colon for the presence of other polyps.
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