A flexible sigmoidoscopy, also called a sigmoidoscopy, is a procedure that is used to allow your doctor to view the lining of the inside of the rectum and lower part of the large intestine, or colon (called the sigmoid colon).
During a flexible sigmoidoscopy, a small, flexible tube with a camera on its end is placed through the anus to visualize the rectum and sigmoid colon. If any potentially pre-cancerous growths, called polyps, are detected, your doctor can remove them during the procedure. If your doctor sees any other abnormal tissue, he or she may take a small sample of tissue, called a biopsy, for further testing. Traditionally, this procedure does not require any sedating medications. However, based on your doctor’s recommendations, sedation may be an option for you.