Brain stem hemorrhage coma for more than 100 days does not always awaken, and the detection of brain stem hemorrhage requires prompt treatment. The chances of waking up from a brain stem hemorrhage coma of more than 100 days are relatively low. If you are awake before surgery for a brain stem hemorrhage, you will usually wake up the day after surgery when the anesthesia wears off. If the brain stem hemorrhage has been comatose before the operation, after the anesthesia effect is eliminated after the operation, but still did not wake up, such as the cerebral edema basically subsided within 2 weeks after the operation, but still did not wake up, that may enter the vegetative state, it is difficult to wake up. The condition of brain stem hemorrhage is relatively dangerous, if we can get timely treatment in the early stage of the disease, carry out hemostasis, decompression and drainage, and control the amount of brain stem hemorrhage, we can increase the chance of patients waking up after coma. If the brain stem hemorrhage enters into deep coma, hydrocephalus, lung infection, water and electrolyte disorders and other complications will easily occur, which will reduce the chance of awakening. Patients found to have brain stem hemorrhage should be sent to the doctor in time for treatment by medical professionals.