If it is determined that the bleeding is from the small intestine, capsule endoscopy, small colonoscopy, intervention and dissection are options to find the bleeding point. 1. Capsule endoscopy: Capsule endoscopy is a small capsule with a built-in video camera that is taken orally to record images of movement through the digestive tract. It is often used to take pictures of the small intestine to document the condition of the small intestine and to detect small intestinal lesions. 2. Small colonoscopy: similar to a gastroscope, small colonoscopy enters the small intestine through the mouth or anus for examination, and can look for and find areas of bleeding in the small intestine, and can also do further biopsies or treatments if needed. 3. Intervention: Selective angiography and other interventional means can be performed to find the bleeding site, and embolization can also be performed with intervention. 4. Caesarean section: opening the abdominal cavity, the small intestine can be carefully examined to find the bleeding point, and hemostasis treatment can be carried out. When bleeding occurs in the small intestine, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment to avoid aggravation of the condition.