The reasons for not waking up from cerebral hemorrhage may be larger amount of bleeding, bleeding in critical areas and so on. 1. Large amount of bleeding: the amount of cerebral hemorrhage is relatively large, and it is difficult for the body to absorb it, so that the intracranial pressure continues to increase, which can cause damage to the reticularis superior activation system of the brainstem or form cerebral hernia, so that the body develops a consciousness disorder, 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.