1. Large amount of bleeding: the amount of cerebral hemorrhage is relatively large, which is difficult to be absorbed by the organism, so that the intracranial pressure continues to increase, which can cause damage to the reticularis superior activating system of the brainstem or the formation of cerebral hernia, so that the human body suffers from a disorder of consciousness, and the patient may be unconscious and not wake up. 2. Bleeding in key areas: Cerebral hemorrhage is located in the cerebellum, brainstem and other parts of the brain, even if a small amount of bleeding, it can affect the vital center, or cause damage to the brainstem reticularis superior activating system, which often leads to the patient’s coma. When the situation is more serious, it can lead to the formation of brain hernia, and can even cause respiratory and circulatory failure, which puts life at risk. In the case of cerebral hemorrhage without waking up, you should go to a regular hospital in time, actively listen to the advice of a professional doctor, and get treatment as soon as possible to avoid irreversible damage to the body caused by untimely treatment.