What causes cerebral vascular malformations?

The etiology of cerebrovascular malformation is unclear, considering congenital abnormalities, genetic factors, thrombosis and other reasons.

1. Congenital abnormalities: If abnormal angiogenesis is caused by certain factors during embryonic development, it will interfere with the normal development of primitive cerebral vascular plexus and cause cerebrovascular malformations.

2. Genetic factors: Some cerebrovascular malformations are genetic diseases, such as capillary malformation-arteriovenous malformation, hereditary hemorrhagic telangiectasia, etc.

3. Thrombosis: Some clinical studies believe that trauma, brain infection and other factors can lead to sinus thrombosis, which will progress to dural arteriovenous malformation.