Screening for Colorectal Cancer

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Colorectal Cancer Statistics

  • colorectal cancer is the third most common cancer in Canada1
  • 1 in 14 men and 1 in 18 women will receive a diagnosis in their lifetime
  • with screening and early detection, colorectal cancer can be preventable and easy to treat

Risk Factors

  • 50 years of age or older
  • smoking tobacco
  • drinking alcohol
  • family history of colorectal cancer or polyps, uterine cancer, or ovarian cancer
  • inflammatory bowel disease (primarily Crohn’s disease in the colon and ulcerative colitis)
  • overweight or obesity
  • consuming a diet high in processed and red meats
  • physical inactivity

Early Warning Signs

  • blood on or in your stool, either bright red or very dark in colour
  • unexpected changes to normal bowel habits, such as diarrhea and/or constipation
  • constant abdominal pain
  • feeling that the bowel does not completely empty
  • unplanned weight loss
  • constant fatigue

Screening Guidelines

All individuals 50 years of age and older are at an average risk for colorectal cancer, even without symptoms. Your healthcare provider will recommend a screening test based on your medical history and your risk for colorectal cancer. The tests available vary by province and include:

  • fecal immunochemical test (FIT)
  • fecal occult blood test (FOBT)
  • flexible sigmoidoscopy
  • colonoscopy
  • CT colonography

Contact your healthcare team. Get checked!


First published in the Inside Tract® newsletter issue 219 – 2021
1. Government of Canada. Colorectal cancer in Canada page. Available at: https://www.canada.ca/en/public-health/services/publications/diseases-conditions/colorectal-cancer.html. Accessed 2021-07-02.