Flexible Sigmoidoscopy

A visual examination of the inside of the rectum and lower part of the colon

Sigmoidoscopy is the visual examination of the inside of the rectum and lower part of the colon, called the sigmoid colon. The examination is done using an endoscopy which is a lighted, flexible tube connected to a video screen. During a sigmoidoscopy only the last one to two feet of the five to six-foot-long colon (large intestine) is examined.