The causes of brain hemorrhage re-bleeding vary depending on the disease. For example, in the case of ventricular hemorrhage, the most common cause of ventricular hemorrhage is smog disease. The clinical characteristic of smog disease is that it will repeat ventricular hemorrhage many times, which is a characteristic of the disease. Hypertensive cerebral hemorrhage, hypertensive cerebral hemorrhage reoccurrence of bleeding, the main reason is due to the late process, did not regularly take and monitor high blood pressure, including some bad lifestyle, such as tobacco and alcohol, bowel irregularity, emotional easily agitated, etc., are induced by the cause of rebleeding. Cerebral amyloidosis, whose occurrence of rebleeding is also a clinical feature of the disease.