There are many causes of small intestinal bleeding, mostly due to small intestinal ulcers, usually 1 to 2 weeks can be healed and normal intestinal digestive function can be restored. There are many reasons for small intestinal bleeding, common causes include enteritis, bacillary dysentery, intestinal polyps and intestinal diverticula, etc. Tumor diseases and vascular diseases, coagulation disorders, etc., can also cause small intestinal bleeding, therefore, intestinal bleeding should be timely medical care, diagnosis of the cause of the bleeding and targeted treatment. Different diseases have different bleeding stop time, blindly waiting, may lead to delay and aggravation of the condition. Bleeding from the small intestine can be treated conservatively with medication, or invasively with small colonoscopy, interventional therapy and surgery. When the bleeding is small, it can be cured by internal medicine alone; when the bleeding is large and medication is ineffective, surgery can be used. Small intestinal bleeding can be cured in two weeks, in the process of treatment, we should also pay attention to the light diet, do not eat spicy food, prohibit alcohol, ensure sufficient rest, to a certain extent, can promote the healing of intestinal bleeding. Found that there is small intestinal bleeding, first of all, you should go to the hospital in a timely manner, improve the examination, clear diagnosis, and then follow the doctor’s instructions to carry out the appropriate treatment. Do not blindly wait for self-healing.