In a routine screening program, how often is colon cancer screening with FIT kit typically offered to average-risk adults?

• A. Every 1 year
• B. Every 2 years
• C. Every 3 years
• D. Every 4 years

Answer: (B)

The frequency is set to balance how well the test works with practical screening logistics. A fecal immunochemical test (FIT) can reliably flag hidden blood that may indicate colorectal cancer or advanced lesions, and using it every two years provides a reasonable catchment window without overburdening the system with too many follow-up colonoscopies. Testing more often (every year) would increase resource use and potential harms without a proportional increase in cancer detection for average-risk individuals. Testing less often (every 3–4 years) could allow cancers to progress between screens. So, offering FIT every two years aligns with typical program design for average-risk adults, with positive results prompting a diagnostic colonoscopy and negative results leading to the next screening cycle.