The brainstem has dense nerve and conduction bundles and is a smaller part of the central nervous system. In general, brainstem hemorrhage is more dangerous and has a higher mortality rate, and its hemorrhage sites mainly include the cerebral bridge, midbrain, and medulla oblongata. 1. Cerebral bridge: Most brainstem hemorrhages are cerebral bridge hemorrhages, and after hemorrhage at this site, patients will have headache, vomiting, diplopia, and other symptoms, and may also have movement disorders of the limbs, such as crossed paralysis, hemiparesis, and quadriplegia. At the same time, there will be damage to the fan reticular activation system and waking coma, i.e., the patient has open and closed eyes, has sleep-wake cycles, but is in a comatose state and cannot communicate with the outside world. 2. Midbrain: brainstem hemorrhage located in the midbrain is less common. If it is a midbrain hemorrhage, it will lead to movement disorders of the limbs and also affect facial expressions, and can only express their thoughts through eye movements and appear as an atresia syndrome. If the hemorrhage is large, the patient may have symptoms such as impaired consciousness, tetraplegia, and even death in severe cases; 3. Medulla oblongata: Brainstem hemorrhage located in the medulla oblongata is much rarer, and a small amount of hemorrhage may affect the vital center, thus leading to the termination of respiratory and cardiac arrest. After brainstem hemorrhage, call 120 for medical attention immediately. While waiting, keep the patient lying down and tilt the head to the side to prevent vomit from obstructing the airway. This disease should be treated aggressively with symptomatic treatment, such as giving a ventilator to maintain vital signs, including monitoring blood pressure and oxygen saturation, and also maintaining electrolyte balance.