At what age should routine colon cancer screening begin for average-risk patients?

Routine colon cancer screening for average-risk patients is recommended to begin at age 45. This guideline has been updated to reflect the increasing incidence of colorectal cancer in younger populations. The American Cancer Society and other health organizations now advocate for screening to start at this earlier age, as it allows for the detection and removal of precancerous polyps before they can develop into cancer.

The choice of age 45 is supported by studies showing that starting screening at this age significantly reduces mortality rates from colorectal cancer. The earlier screening helps to identify individuals who may benefit from earlier intervention, lifestyle modifications, or closer follow-up due to individual risk factors.

Screening methods include colonoscopy, stool-based tests like FIT or Cologuard, and floating blood tests. The importance of beginning screening at an earlier age underscores the need for awareness and preventive care in the general population.