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Complete bowel cancer screening

Regular screening can find bowel cancer earlier and remove some growths before they become cancer.

Impact EvidenceAUSPSTF recommendation drawing on randomized screening trials, cohorts and modeling EffortSome effort

The number, drawn

from 45 years of age US starting age for average risk bowel cancer screeningUSPSTF recommendation; local screening ages differ

Why it matters

Some bowel cancers develop from polyps that screening can detect and remove. The 2021 USPSTF recommendation starts screening at age 45 for adults at average risk. Different tests have different schedules, and an abnormal stool test needs a colonoscopy to complete the process.

How to do it

  1. Check your national programme: the EU recommends FIT screening at ages 50 to 74, and US guidance starts at 45.
  2. Choose a recommended test you can complete, such as yearly FIT or colonoscopy every 10 years in the US.
  3. Return the stool sample promptly or complete the preparation for your booked procedure.
  4. Arrange the recommended follow-up after any abnormal result and record the next due date.

Family history, prior polyps or bowel inflammation can mean earlier testing. Bleeding or persistent bowel changes need assessment rather than waiting for screening; ages 76 to 85 require an individual decision.

Do it

Pick the time you have. Anything beats nothing.

Start with the time you have

1 minute

Look up your country's bowel screening ages (45 to 75 in the US, 50 to 74 in England) and check whether you are in range.

In real life

  • If your screening kit has not arrived, contact the programme to check your address and eligibility.
  • For an NHS FIT kit, keep the sample out of toilet water and post it promptly using the supplied envelope.

Watch out for

  • Common mistakeA positive stool test does not finish screening, so arrange the recommended follow-up.
  • Common mistakeBleeding or persistent bowel changes need assessment, so contact a clinician rather than waiting for a screening invitation.

Trusted guides

Check usSources

Evidence grade
A Meta-analyses of randomised trials, or a major guideline consensus.
Basis
USPSTF recommendation drawing on randomized screening trials, cohorts and modeling
The number
Begin average risk screening at age 45 (USPSTF, 2021)
Outcome
US starting age for average risk bowel cancer screening
Comparison
USPSTF recommendation; local screening ages differ
Back to the hundred

General health information, not a diagnosis or an individual treatment plan. Personalization changes the order of suggestions; it does not assess your medical risks. Follow the cautions and consult a qualified clinician when needed.