It is possible to wake up from a brain stem hemorrhage coma coma of 13 days. Brain stem hemorrhage coma depends not only on the location of the bleeding, but also on the amount of bleeding. The brain stem includes three parts, namely, the midbrain, the pons, and the medulla oblongata. 1. A small amount of midbrain hemorrhage, the patient often has no consciousness disorder, may have headache dizziness nausea and vomiting performance. 2. As the bridge is the center of consciousness, patients with moderate amount of bridge hemorrhage will have consciousness disorder, and after about 2 weeks of treatment, the bridge hemorrhage will subside and the patients will gradually wake up. 3. medulla oblongata hemorrhage, medulla oblongata is the respiratory center of human body, even if the amount of bleeding is small, the respiratory center is inhibited, the vital signs are unstable, and often face death in a short period of time. Therefore, patients with brain stem hemorrhage need to go to the hospital in time, check the CT of the head to see the bleeding of the brain stem, clarify the situation, and actively cooperate with the doctor’s treatment.