Skip to main content

Warning notification:Warning

Unfortunately, you are using an outdated browser. Please, upgrade your browser to improve your experience with HSE. The list of supported browsers:

  1. Chrome
  2. Edge
  3. FireFox
  4. Opera
  5. Safari

Interval cancer - bowel cancer diagnosis after a screening colonoscopy

You can still develop bowel cancer between colonoscopies. This is called interval cancer.

Interval cancers are unavoidable. They happen in every screening programme in the world.

For every 1,000 people in Ireland who have had a BowelScreen colonoscopy:

  • 997 will not get bowel cancer within 3 years of their BowelScreen colonoscopy
  • 3 will get bowel cancer within 3 years of their BowelScreen colonoscopy

Non-urgent advice: Contact your GP if:

Do this even if you have had a recent normal bowel screening result. Do not wait till your next screening.

If you get bowel cancer after a BowelScreen colonoscopy

If you get a bowel cancer after your screening colonoscopy you can ask for a review.

Page last reviewed: 20/10/2022
Next review due: 20/10/2025