A single examination of the lower colon and rectum using sigmoidoscopy, between the ages of 55 and 64 years, reduced colorectal cancer mortality by 43% in those screened and incidence by one third.

Flexible sigmoidoscopy is a test that a doctor uses to check the inner lining of your rectum and the lower part of your colon. You may get this test if you have certain gut problems, such as abdominal ...

Fecal occult-blood testing and sigmoidoscopy have been recommended for screening for colorectal cancer, but the sensitivity of such combined testing for detecting neoplasia is uncertain. At 13 ...