How often do I have to screen for colorectal cancer after the first colonoscopy?

It depends on the results of the first screening colonoscopy and is generally categorized into 3 main risk groups

 

1.   Average risk - The colonoscopy is essentially normal with generally benign findings (e.g., 1-2 low-risk polyps <10mm in size are found or hyperplastic polyps in the rectosigmoid area)

• The FIT screening kit will be sent to you in 5-6 years (i.e., skipping 2 FIT screening cycles)

 

2.   Increased risk requiring 3-year surveillance - The colonoscopy identified high-risk features (e.g., High-risk polyps with size >10mm, lesions with abnormal cell architecture - termed sessile >10mm in size, 3 or more low-risk polyps)

• You will not receive FIT screening kits

• A repeat surveillance colonoscopy will be organized in 3 years

 

3.   Increased risk requiring 5-year surveillance - The colonoscopy identified medium-risk features (e.g., lesions with abnormal cell architecture - termed sessile which are <10mm in size) 

• You will not receive FIT screening kits

• A repeat surveillance colonoscopy will be organized in 5 years

 

Findings of >10 polyps: The endoscopist will arrange the following 

• Removal of the polyps during the colonoscopy

• Consider referral to genetic testing

 

What can I do in between the surveillance period?

Watch for any signs and symptoms such as black tarry stool, bleeding from the rectum, and profound weight loss. If you have any of these features, please seek medical care.