When is screening for colon and rectal cancer indicated in average-risk patients?

Updated: Apr 06, 2021
  • Author: Burt Cagir, MD, FACS; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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People who are asymptomatic, younger than 50 years, and have no other risk factors are considered at average risk for developing colorectal cancer. Screening of the average-risk population should begin at age 50 years and end at age 75 years. [39] Indications for screening in patients at average risk for colon and rectal cancer include the following:

  • No symptoms and age 50-75 years
  • No symptoms, but requesting screening
  • Change in bowel habits
  • Rectal and anal bleeding
  • Unclear abdominal pain
  • Unclear iron deficiency anemia

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