Hematochezia, positioning is very important In all diseases, hematochezia has always been a headache for doctors, whether in internal medicine or surgery. Because the digestive tract is very long, from oropharynx to esophagus to stomach, from small intestine to large intestine to anus, bleeding in every part can be manifested as blood in stool, but as to which part is bleeding, it is difficult to locate. With the development of technology, There are many ways to locate, For example, through gastroscopy and colonoscopy, A large part of the bleeding sites and causes can be determined, but for small intestinal bleeding, the current examination technology is not so mature, and the application of enteroscopy and capsule endoscopy is not so mature. Read More …