Sigmoidoscopy

Flexible sigmoidoscopy; Sigmoidoscopy - flexible; Proctoscopy; Proctosigmoidoscopy; Rigid sigmoidoscopy; Colon cancer sigmoidoscopy; Colorectal sigmoidoscopy; Rectal sigmoidoscopy; Gastrointestinal bleeding - sigmoidoscopy; Rectal bleeding - sigmoidoscopy; Melena - sigmoidoscopy; Blood in stool - sigmoidoscopy; Polyps - sigmoidoscopy

Sigmoidoscopy is a procedure used to see inside the sigmoid colon and rectum. The sigmoid colon is the area of the large intestine nearest to the rectum.

Colonoscopy

There are 4 basic tests for colon cancer: a stool test (to check for blood), sigmoidoscopy (inspection of the lower colon, colonoscopy (inspection of the entire colon), and double contrast barium enema. All 4 are effective in catching cancers in the early stages, when treatment is most beneficial.

Sigmoid colon cancer, X-ray

A barium enema in a patient with cancer of the large bowel (sigmoid area).

Anal biopsy

Rectal biopsy can be used to determine the cause of blood, mucus, or pus in the stool. Rectal biopsy can also confirm findings of another test or x-rays, or take a biopsy of a growth found in the colon.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks