The danger period for brain stem hemorrhage is usually around 7 days. The brain stem is a very important center of the body, including breathing, heartbeat, blood pressure, pulse, body temperature and other vital centers are located in the brain stem. When the amount of bleeding in the brainstem is greater than 5ml, the patient is in danger. If the patient’s bleeding is more than 10ml, the consequences are adverse and may lead to the patient’s death. After bleeding from the brainstem, patients can develop serious complications such as intrapulmonary infections and stress ulcers in the digestive tract, all of which require active treatment. Moreover, the brainstem is a functional area, the chance of surgery is not big, there is no way to be treated by surgery, only conservative treatment. A portion of people with bleeding greater than 5ml may die from failure of brainstem function.