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| Endoscopy - large intestine [Go Back to Keywords List Page]  | large intestine (sigmoidoscopy)
Sigmoidoscopy is a procedure in which a doctor looks inside
your large intestine. The doctor uses a flexible tube with a
light on the end called a flexible sigmoidoscope. Another
instrument called a rigid sigmoidoscope is used less often
because the flexible tube is more comfortable and allows the
doctor to see better.
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