Flexible Sigmoidoscopy

What is a Flexible Sigmoidoscopy?

A flexible sigmoidoscopy is a procedure that allows a gastroenterologist to examine the rectum and the lower part of the colon (sigmoid colon) using a thin, flexible tube with a camera and light at its tip. It provides clear, real-time images of the bowel lining, helping diagnose the cause of symptoms and detect polyps or other abnormalities.

It is similar to a colonoscopy, but shorter, focusing only on the lower section of the bowel. It is often used for patients experiencing rectal bleeding, changes in bowel habits, or unexplained abdominal discomfort.

Why is Flexible Sigmoidoscopy Important?

• Targeted diagnosis – Ideal for identifying causes of bleeding, diarrhoea, or constipation affecting the lower bowel.
• Early detection of bowel cancer – Many cancers begin in the rectum or sigmoid colon, and sigmoidoscopy can identify these early.
• Polyp detection and removal – Precancerous growths can be safely removed during the same procedure.
• Less preparation required – Compared to a full colonoscopy, preparation is simpler and often better tolerated.
• Screening tool – Used as part of bowel cancer screening programmes in certain age groups.