Sigmoidoscopy is the minimally invasive medical examination of the large intestine from the rectum through the last part of the colon. There are two types of sigmoidoscopy, flexible sigmoidoscopy, which uses a flexible endoscope, and rigid sigmoidoscopy, which uses a rigid device. Flexible sigmoidoscopy is today generally the preferred procedure. Sigmoidoscopy is a very effective screening tool. Sigmoidoscopy is similar but not the same as colonoscopy. Sigmoidoscopy only examines up to the s ...
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