Capsule endoscopy (also known as pill-camera or wireless endoscopy) is a new technology designed to examine the small intestine / bowel. It is often used in patients with unexplained iron deficiency to determine if there is any bleeding in the small intestine. The test involves swallowing a capsule (about the size of a jelly bean) which contains a tiny camera that takes multiple digital images as it travels through the small intestine. The images are transmitted to a data recorder worn in a harness around the waist. The capsule does not need to be retrieved as it is usually passed unnoticed into your stools. Capsule endoscopy is a day procedure. No sedation or anaesthetic is required.