Screening reduces the mortality both by decreasing incidence and by detecting a higher proportion of cancers at early, more treatable stages. Screening includes various blood tests; flexible sigmoidoscopy; barium enema; and colonoscopy.
Screening reduces the mortality both by decreasing incidence and by detecting a higher proportion of cancers at early, more treatable stages. Screening includes various blood tests; flexible sigmoidoscopy; barium enema; and colonoscopy.
Beginning at age 50, men and women who are at average risk for developing colorectal cancer should begin screening. Screening can result in the detection and removal of colorectal polyps before they become cancerous as well as the detection of cancer that is at an early stage.