Flexible Sigmoidoscopy

Flexible sigmoidoscopy is a type of endoscopic procedure used to view the inner lining of the lower part of the large intestine (colon) and rectum. It is a safe and relatively painless procedure that only takes a few minutes to complete. Flexible sigmoidoscopy is done in order to detect any polyps, ulcers, bleeding, or other abnormalities present in the lower colon that may not be visible on a standard X-ray. If any of these are detected, a biopsy may be taken for further testing. This procedure is most often used for screening for colorectal cancer and to diagnose intestinal problems. It is particularly useful for identifying polyps, which can be a precursor to colorectal cancer. It can also be used to identify certain infections and inflammatory conditions in the colon. The procedure itself is done using a flexible, lighted tube (sigmoidoscope) that is inserted into the rectum and then advanced up into the lower colon. A small camera on the end of the tube allows the doctor to view the lining of the colon on a monitor.