Brainstem hemorrhage is a very dangerous disease because the structure of the brainstem is so crucial. It contains the life centers responsible for breathing and heartbeat, as well as sensory and motor nerve fibers passing through it. If the brainstem hemorrhage is severe and the amount of bleeding is large, the patient may experience paralysis of the limbs, swallowing dysfunction, and choking on water, among other symptoms. If the condition worsens, it can lead to coma, persistent high fever, and even death. Patients with minor brainstem hemorrhages may exhibit symptoms such as dizziness, nausea, vomiting, numbness in the limbs, and paralysis. Generally, brainstem hemorrhages are caused by hypertension, which must be well controlled.