Capsule endoscopy is a simple way to check your bowel. You swallow a tiny camera that takes pictures as it travels through your body. It’s used to detect the presence of tumours, polyps, colitis, diverticulitis and other bowel diseases. It’s painless, doesn’t use radiation, and you can do it at home. A doctor will review the pictures and discuss the results with you. It’s a great way to find problems early, but it might not be right for everyone.