U.S. Department of Health and Human Services
This paper provides information on screening tests used to cure 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. People who have polyps or colorectal cancer sometimes don't have symptoms, especially at first. This means that someone could have polyps or colorectal cancer and not know it. That is why having a screening test is so important. Several different screening tests can be used to test for polyps or colorectal cancer. Sometimes they are used in combination with each other or alone.