Gastroenterology• Updated 21 October 2026
Capsule Endoscopy
A test where you swallow a pill-sized camera that takes pictures of the small bowel.
Results: 1–2 weeks
Quick Summary
Primary Purpose
To find hidden bleeding, Crohn's disease or growths in the small intestine.
What It Measures
Images of the small bowel lining.
Preparation
Bowel preparation and fasting as advised.
Overview
The capsule passes naturally and isn't reused.
It's used when endoscopy and colonoscopy haven't found the cause.
What It Measures
Small bowel lining
Bleeding, ulcers, polyps.
How It's Performed
- 01
Swallow
The capsule with water.
- 02
Wear
A recorder for about 8 hours.
- 03
Pass
The capsule passes in the stool.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Endoscopy(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Endoscopy(opens in a new tab) · NHS