Individuals should be screened for colorectal cancer soon after turning 50 years of age. Screening tests, such as a sigmoidoscopy or colonoscopy, can find precancerous polyps so they can be removed before turning cancerous. They can also detect cancer early when treatment is more effective.
Regular screening of the colon, beginning at age 50 is key to preventing colon cancer. Colonoscopies should be done every 10 years. Those that are at higher risk of developing colorectal cancer should begin screening at a younger age and test more frequently.
Colon cancer is the second leading cause of cancer-related death in the U.S. (Colon Cancer Alliance)