Tom Reeve Academic Surgical Clinic · St Leonards

Patient resources · Gallbladder polyps

Do gallbladder polyps need treatment?

Most small gallbladder polyps are benign and may need either no follow-up or ultrasound surveillance. Surgery may be considered when size, growth, imaging appearance, symptoms or personal risk factors raise concern. Thresholds carry uncertainty and should be applied to the individual.

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/ 01Overview

What is a gallbladder polyp?

A gallbladder polyp is a projection from the inner gallbladder wall seen on imaging. Many are cholesterol deposits rather than true tumours. Ultrasound can estimate size and appearance, although small lesions can be difficult to measure consistently.

/ 02Patient information

Which polyps can be monitored?

Current European guidance uses polyp size and risk factors to decide whether ultrasound follow-up is appropriate. Very small polyps without risk factors may need no follow-up, while other small lesions may be rescanned. The schedule depends on the complete imaging and clinical picture.

/ 03Patient information

When may gallbladder removal be discussed?

Cholecystectomy may be discussed for polyps at or above guideline size thresholds, concerning growth or appearance, selected risk factors, or symptoms reasonably attributed to the gallbladder. Surgery carries material risks, so uncertain benefit and surveillance remain part of informed consent.

/ 04Patient information

What does growth on ultrasound mean?

A measured increase can prompt reassessment, although ultrasound measurements vary between examinations. Review considers the amount and rate of growth, current size, morphology, image quality and personal risk factors before deciding on surveillance, further imaging or surgery.

/ 05Patient information

What happens if surgery is chosen?

The operation is laparoscopic cholecystectomy, which removes the whole gallbladder for laboratory examination. Material risks include bleeding, infection, bile leak, bile-duct injury, retained stones, blood clots, anaesthetic complications and conversion to open surgery.

/ 06Common questions

Most small gallbladder polyps are benign. Size, growth, shape and individual risk factors help estimate concern, while final certainty may require pathology after removal.

Small apparent polyps can change or disappear on later ultrasound, partly because cholesterol deposits and measurement vary.

Follow-up depends on size and risk factors. Current guideline schedules should be applied to the individual rather than using one interval for everyone.

The established operation removes the gallbladder rather than excising a polyp alone, allowing complete pathology assessment.

Many polyps are incidental. Other gallbladder disease or another cause of abdominal pain should be considered before attributing symptoms to a polyp.

/ 07Evidence and review

What evidence supports this information?

Current independent guidelines provide the main basis for treatment information. Professor Hugh’s publications are listed separately as research and practice context, with the limits of each study stated.

Independent guidelines and reviews

Updated joint European guidelines for management and follow-up of gallbladder polyps. A 2022 multi-society guideline using size and risk factors while acknowledging low-quality evidence for several recommendations.

Research involving Professor Hugh

These publications provide research and practice context. Their design, population and age limit how broadly each finding can be applied.

Hugh. How I deal with patients with gallbladder polyps (2001). An older clinical article that provides historical practice context rather than current guideline authority.
Wennmacker and Hugh. Gallbladder polyps: To treat or not to treat? (2018). A narrative clinical review published before the current 2022 European guideline update.

Reviewed by Professor Thomas J. Hugh, MBBS, FRACS, MD

Published 25 August 2026. Last reviewed 25 August 2026.

/ 08Related reading

Last updated 25 August 2026