Flexible Sigmoidoscopy Patient Information from SAGES

About Flexible Sigmoidoscopy

What Is Flexible Sigmoidoscopy?

Flexible sigmoidoscopy is a procedure that enables your surgeon to examine the lining of the rectum and lower colon (bowel). It is usually done in the surgeon’s office or a procedure room, but occasionally may be done in the hospital. A lubricated soft, bendable tube about the thickness of the index finger is gently inserted into the anus (rectal opening) and moved into the rectum and the lower part of the colon.

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Why Is Flexible Sigmoidoscopy Performed?

Flexible Sigmoidoscopy is often done as part of a routine screening for cancer for patients over 50 years old, before some surgeries, or to evaluate the causes of symptoms (such as diarrhea, bleeding, colitis, changes in bowel habits and, changes in stool form or color). Flexible Sigmoidoscopy is also used as a screening tool for patients whose families have a history of colorectal cancer.

What Preparation Is Required?

The rectum and lower colon must be completely emptied of stool for the procedure to be performed. One or two enemas prior to the procedure is all that is necessary, but laxatives or dietary modifications may be recommended by your surgeon in certain instances. Your surgeon or his/her staff will give you instructions regarding the cleansing routine to be used. If the area to be examined is not clear of stool the surgeon will not be able to perform an effective examination. Be sure to follow your surgeon’s preparation instructions.

Most of your medications can be continued as usual. However, the use of medication such as aspirin, Vitamin E, non-steroidal anti-inflammatories, and blood thinners should be discussed with your surgeon prior to the examination. It is essential that you alert your surgeon if you require antibiotics prior to undergoing dental procedures, since you may also require antibiotics prior to sigmoidoscopy.

What Can Be Expected During Flexible Sigmoidoscopy?

You will be awake during the procedure. Occasionally, the surgeon may give you some light sedation. The procedure is well tolerated and rarely causes discomfort. The inside of the colon has few nerve endings; therefore, it is unusual to feel the scope moving within the body. Air is injected to distend or widen the passage. This may cause a feeling of pressure, gassiness, bloating, or cramping during the procedure. You will lie on your side while the sigmoidoscope is advanced through the rectum and lower colon. The lining of the intestine is examined carefully. The procedure usually lasts for five to fifteen minutes. If there is extreme discomfort, you should tell your surgeon and the procedure will be terminated.

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SOCIETY OF AMERICAN GASTROINTESTINAL AND ENDOSCOPIC SURGEONS (SAGES)
11300 West Olympic Blvd., Suite 600
Los Angeles, CA 90064
Tel:
(310) 437-0544
Fax:
(310) 437-0585
E-Mail:
publications@sages.org
Revised:
March 1, 2015
This brochure is intended to provide a general overview of a surgery. It is not intended to serve as a substitute for professional medical care or a discussion between you and your surgeon about the need for a surgery. Specific recommendations may vary among health care professionals. If you have a question about your need for a surgery, your alternatives, billing or insurance coverage, or your surgeons training and experience, do not hesitate to ask your surgeon or his/her office staff about it. If you have questions about the operation or subsequent follow up, discuss them with your surgeon before or after the operation.