How is cerebral venous malformation caused?

Cerebral venous malformation is a rare morphological change of cerebral blood vessels in clinical practice, accounting for about 1/4 of cerebral vascular malformation. Cerebral venous malformation and cerebral arterial malformation are similar in morphology. The abnormal blood vessel wall is relatively thin, which is very easy to cause hemorrhage. It may cause intracranial hematoma or venous thrombosis. The main reason for cerebral venous malformation is due to genetic factors and congenital abnormalities. There are also some patients with venous malformations caused by hemodynamic changes caused by less capillary network in the brain. If cerebral venous malformations are found, it is recommended to go to the neurosurgery department of a hospital above Grade II for surgery or intervention in time to prevent bleeding.