What is a Flexible Sigmoidoscopy?
Flexible sigmoidoscopy is a procedure used to examine the sigmoid colon and rectum. A flexible sigmoidoscopy can detect abnormal growths, ulcers, and inflammation of the lining in the areas seen. The procedure is used to look for early signs of cancer and may help in the diagnosis of unexplained changes in bowel habits, abdominal pain, rectal bleeding and weight loss.
The procedure takes approximately ten minutes and is usually tolerated well. You will be lying on your left side, and you may experience a feeling of pressure, bloating, or cramping at some point during the procedure. After a sigmoidoscopy, you should be able to eat and carry on your normal activities. Since you will not be receiving sedation, you do not need an escort to accompany you home.
How is a Flexible Sigmoidoscopy different from Colonoscopy?
A flexible sigmoidoscopy only allows the doctor to see the rectum and sigmoid colon areas, while during a colonoscopy the entire colon is visualized. Colonoscopy is the preferred screening test for cancers of the colon; however a flexible sigmoidoscopy may be beneficial in the diagnosis of specific symptoms that may involve the rectum and/or sigmoid colon.
Preparation for Flexible Sigmoidoscopy
To prepare for a flexible sigmoidoscopy, two enemas (which can be purchased at any local drugstore) are performed 2 hours before the exam. This removes all solid waste from the sigmoid colon so the physician is able to see the area clearly.