Brainstem hemorrhage is caused by the rupture of small blood vessels in the brainstem, with common causes including hypertension, cerebral arteriosclerosis, vascular degeneration, and microaneurysms of vessels. Clinically, it manifests as sudden onset of consciousness impairment, confusion, coma or deep coma, accompanied by disorders of limb sensory and motor functions, eye movement disorders, and unstable vital signs, among others.

If the hemorrhage occurs in the medulla, it can cause death by stopping the patient's heartbeat and breathing within a short period. Brainstem hemorrhage is a severe condition in neurology, and treatment focuses on bed rest to stop bleeding, reducing intracranial pressure, and treating complications. Despite advances in modern medicine, medical professionals often find themselves powerless in the face of many patients with brainstem hemorrhage. For brainstem hemorrhages with more than three milliliters of blood, most patients ultimately succumb to the condition. Therefore, brainstem hemorrhage is a very serious disease with a very high mortality rate in clinical settings.