There are many causes of brainstem hemorrhage, and clinically, it is mostly considered to be caused by hypertensive cerebral hemorrhage. Patients have a history of hypertension and have not received regular and effective antihypertensive treatment, leading to suboptimal blood pressure control. Excessively high blood pressure often results in the weakening or even disappearance of the patient's own vascular regulatory functions. Under certain triggering factors, such as fatigue, exhaustion, mental stress, or overly intense emotions, the blood pressure within the vessels may exceed their own regulatory capabilities, making bleeding more likely. If the bleeding occurs in the brainstem, it manifests as a brainstem hemorrhage. In some patients, brainstem hemorrhages are caused by conditions like cavernous angiomas, aneurysms, or arteriovenous malformations.