Spontaneous ventricular hemorrhage is a syndrome caused by the rupture of intracranial blood vessels due to non-traumatic factors and the entry of blood into the ventricular system. According to the source of its bleeding site, it is divided into primary ventricular hemorrhage and secondary ventricular hemorrhage. Ventricular hemorrhage is a common clinical condition with significant characteristics: high disability rate, high mortality rate, high complication rate, and poor prognosis. The incidence of primary ventricular hemorrhage accounts for 3.1% to 8.6% of cerebral hemorrhage and 7.4% to 18.9% of intraventricular hemorrhage. Comprehensive domestic and foreign literature statistics, the mortality rate of spontaneous ventricular hemorrhage generally ranges from 14% to 83.3%, with an average of 46.76%, including an average domestic mortality rate of 43.2% and an average foreign mortality rate of 54.07%. Some literature reports that the mortality rate of hypertensive cerebral hemorrhage breaking into the ventricles is 30% to 50%, and the mortality rate of ventricular cast is 60% to 90%. The most common causes of primary intraventricular hemorrhage are choroid plexus aneurysm and cerebral arteriovenous malformation, and other common causes are hypertension and smog. Cerebral arteriovenous malformations and aneurysms are more common in adolescents, and hypertension is more common in older patients. The most common cause of secondary intraventricular hemorrhage is hypertension, followed by aneurysm, cerebral arteriovenous malformation, and smog. Other rare causes include bleeding from intracranial tumors, coagulation abnormalities, and bleeding after cerebral infarction. Hypertension is one of the main causes of primary ventricular hemorrhage, which mainly comes from the choroid plexus or small vessels in the ventricular wall. Ruptured aneurysms can also lead to ventricular hemorrhage. The most common causes of ventricular hemorrhage are anterior communicating artery aneurysms and apical basilar artery aneurysms. The unknown cause is about 21% to 47%, and many cases of unknown cause may be related to “hidden hemangioma”. Surgical treatment: craniotomy: longitudinal-callosal-lateral ventricular approach, frontal-lateral ventricular approach. Stereotactic hematoma aspiration Neuroendoscopic ventricular hematoma removal Lateral ventricular puncture external drainage We use lateral ventricular puncture external drainage, intracerebroventricular injection of urokinase, and lumbar puncture once a day to release cerebrospinal fluid for treatment. The results were good. Preoperative Postoperative The imaging showed smoldering disease.