What are available screening tests for colon cancer?

'scopes, X-rays, etc: A number of different screening tests are available for colon ca. They include colonoscopy, flexible sigmoidoscopy, double-contrast barium enema, ct colonography (virtual colonoscopy), and fecal occult blood testing. The pro's and con's of each are described here: http://www.Cancer.Gov/cancertopics/factsheet/detection/colorectal-screening.

Several options: Colonoscopy is probably the most common option which evaluates the whole colon and will treat any polyps identified. Other acceptable options: flexible sigmoidoscopy (partial/eft scope), air contrast barium enema, ct colonography (not often covered by insurance), stool tests for occult blood, (guaiac, fit), stool dna tests (detects cancer cells). If any above positive, you may need a colonocopy.

Three or more: Fecal occult blood testing is meant to detect polyps and cancer. Signoidoscopy, or better yet colonoscopy is better. Colonoscopy being the gold standard. Imaging studies are gaining increasing acceptance.