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Screening Guidelines

When and how often to get screened

Screening means checking for cancer or pre-cancerous polyps before you have any symptoms. Canada's guidelines recommend starting at age 50 for people at average risk.

BC Colon Screening Program

  • The BC Cancer Colon Screening Program recommends a FIT (fecal immunochemical test) every 2 years starting at age 50
  • If your FIT test is positive, you'll be referred for a colonoscopy
  • If you have higher risk factors, your doctor may recommend starting earlier or going directly to colonoscopy
  • Colonoscopy ordered by a physician is fully covered by MSP — there is no cost to you

You may need earlier or more frequent screening if you have

  • A parent, sibling, or child who had colorectal cancer or advanced polyps
  • A personal history of polyps or colorectal cancer
  • Inflammatory bowel disease (Crohn's disease or ulcerative colitis)
  • Certain genetic conditions (Lynch syndrome, FAP)
  • Symptoms such as blood in your stool, unexplained weight loss, or a change in bowel habits

How often do you need a colonoscopy?

FindingNext Colonoscopy
Normal colonoscopy (no polyps)Every 10 years
1-2 small tubular adenomasEvery 5-10 years
3-10 adenomas or advanced polypsEvery 3 years
More than 10 adenomasWithin 1 year
Family history of CRCStarting at age 40 or 10 years before the youngest affected relative