Colonoscopy & Screening

Colon Polyps: Are They Dangerous?

Updated 2026-06-094 min read

Most colon polyps are benign, but some types can progress to colorectal cancer over years. Detection and removal during colonoscopy reduce this risk.

Common types

Hyperplastic polyps — usually low risk
Adenomatous polyps — potential to progress
Sessile serrated lesions — variable risk, careful follow-up

Why removal matters

Polyp removal during colonoscopy is one of the most effective measures against colorectal cancer. Pathology of the removed tissue guides the follow-up interval.

Follow-up

After removal, surveillance colonoscopy is planned based on number, size, histology of polyps and personal/family history.

This page is for general information only

The content here is not a diagnosis or treatment recommendation and does not replace an individual medical evaluation. If your symptoms persist, consult a physician. In emergencies call 112 or the nearest emergency department.

Symptoms Treatments FAQ

Frequently asked questions

Do all polyps become cancer?

No. Only certain types carry significant risk, and even then, progression takes years.

Is removal painful?

It is performed during colonoscopy under sedation and is generally not painful.