A capsule endoscopy is used to record the inside of small and large bowel. it works by swallowing a small capsule (like a pill) and a tiny camera present within the capsule takes multiple images as it passes through the gastrointestinal tract. A capsule endoscopy is used to visualise parts of the intestines that can’t be seen with traditional camera methods such as colonoscopy or gastroscopy. It may be used to diagnose causes of abdominal pain (such as Crohn’s disease) or to find the site of gastrointestinal bleeding. The images are transferred to an external box worn by the patient. These images can then be reviewed.