Colonoscopy Screening & Surveillance Calculator

Clinic protocol intervals shown (fixed 1 / 3 / 5 / 7 / 10 years). Quality/safety overrides may shorten the interval.

Scenario

Use Second surveillance when the patient already had a prior colonoscopy with polyps and then had a follow-up colonoscopy, and you are choosing the next interval.

Family History (1st-degree relative CRC)

Protocol: start at age 40 or 10 years younger than affected relative’s diagnosis (whichever is earlier), then repeat every 5 years until age 80 (if life expectancy >10 years).

Exam Quality & Resection

Quality/safety overrides: incomplete exam or poor prep typically warrants earlier repeat.

Conventional Adenomas

Serrated Lesions

Hyperplastic Polyps

Recommended Interval

Intervals shown as fixed years per your protocol.

Why:

    Disclaimer: Educational aid. Does not replace clinical judgment. Consider hereditary syndromes, IBD, prior CRC, exam quality, completeness, and exact pathology wording.