U.S. Department of Health and Human Services
This paper provides information on screening tests used in the cure of colorectal cancer. Colorectal cancer is the 2nd leading cancer killer in the U.S. But if everyone age 50 or older had regular screening tests, at least one third of deaths from this disease could be avoided. Colorectal cancer almost always develops from precancerous polyps (abnormal growths) in the colon or rectum. Screening tests can find polyps, so they can be removed before they turn into cancer. Screening tests can also find colorectal cancer early, when treatment works best.