According to a study published in the Jan. 18 issue of the journal Annals of Internal Medicine, fecal occult blood test (FOBT) performed in-office as part of a digital rectal examination failed to detect potentially cancerous colon growths 95 percent of the time. Furthermore, an at-home FOBT was found to detect cancerous polyps less than 24 percent of the time.
http://www.sciencedaily.com/releases/2005/01/050124003727.htm
Colonoscopy Still Most Effective Colorectal Cancer Screening Method
