Colonoscopy Screening Interval by Polyp Type

Determine appropriate colonoscopy surveillance interval based on polyp histology, size, number, and presence of high-grade dysplasia per ACG guidelines.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Determine appropriate colonoscopy surveillance interval based on polyp histology, size, number, and presence of high-grade dysplasia per ACG guidelines

Each component has a specific meaning:

  • Polyp histology — The polyp histology recorded for the scenario being assessed.
  • Size — The size recorded for the scenario being assessed.
  • Number — The number recorded for the scenario being assessed.
  • Presence of high-grade dysplasia per ACG guidelines — The presence of high-grade dysplasia per acg guidelines recorded for the scenario being assessed.

Note: Interpret the colonoscopy interval polyp result against the thresholds and context described above.

How to Use

Enter the polyp histology, size, number, presence of high-grade dysplasia per ACG guidelines for the scenario you are assessing. Determine appropriate colonoscopy surveillance interval based on polyp histology, size, number, and presence of high-grade dysplasia per ACG guidelines. Use the colonoscopy interval polyp result to inform your calculation.

Frequently Asked Questions