Colorectal cancer is an important problem in the United States, with over 1
30,000 new cases and 55,000 deaths each year. There is now strong evidence
that screening for colorectal cancer with fecal occult blood testing can de
crease mortality, and additional evidence that removing benign adenomas can
decrease cancer incidence. Evidence-based screening guidelines depend on c
olorectal cancer risk. Individuals at higher risk because of a personal or
family history deserve more intensive screening than asymptomatic individua
ls over age 50.