Capsule endoscopy is a non-invasive examination, especially for the small intestine is very necessary, the examination steps are mainly as follows: First, 2-3 days before the examination need to pay attention to the diet, to a light diet, non-slag diet, in order to facilitate intestinal preparation. Second, oral laxatives to perform intestinal preparation and cleanse the intestines. Thirdly, oral capsules and a vest are needed. The vest is a monitor to facilitate transmission to the top of the computer. If you need to check the stomach, you can turn back and forth on the examination bed and exercise properly. A typical capsule examination is about 8-10 hours to get a complete view of the intestinal tract. Some patients who have slow bowel movements may not be able to observe the bowel completely and end up with a computer to observe the bowel.