What are the American College of Gastroenterology (ACG) guidelines for colorectal cancer screening?

Updated: Apr 15, 2020
  • Author: Tomislav Dragovich, MD, PhD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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The guidelines of the American College of Gastroenterology make a distinction between screening tests for cancer prevention and cancer detection, preferring cancer prevention tests. [47]  The specific guidelines for colorectal cancer screening are as follows:

  • Tests that prevent cancer are preferred over those that only detect cancer

  • The preferred colorectal cancer prevention test is colonoscopy every 10 years, beginning at age 50 years, but at age 45 years in African Americans

  • For patients who decline colonoscopy or another cancer prevention test, the preferred cancer detection test is FIT, conducted annually

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