After a sudden cerebral hemorrhage, there is no exact time when the patient wakes up from the coma, and it is closely related to the severity of the patient’s condition. For patients, the sooner they wake up, the better. Under normal circumstances, if the bleeding site is far from the critical area and the bleeding volume is small, the patient will not be in a coma, and even if he or she is in a coma, he or she can usually wake up within a few days after active treatment. However, if the bleeding site is critical, such as the brainstem, and the bleeding volume is large, and serious cerebral edema or even brain herniation occurs, the chance of coma increases greatly, and the specific time to wake up after coma varies from person to person, and in severe cases, the patient is even in a long-term coma state, which is difficult to correct. Patients with massive cerebral hemorrhage in coma may not wake up with conservative medical treatment and should undergo surgical treatment in time to save the patient’s life.