“A brain arteriovenous malformation (AVM) is a rare, abnormal tangle of blood vessels connecting arteries and veins, bypassing normal brain tissue. It typically forms before birth and can cause seizures, headaches, or neurological issues, though many are asymptomatic until they rupture, causing a dangerous brain hemorrhage.”
From Google:
“A brain arteriovenous malformation (AVM) is a rare, abnormal tangle of blood vessels connecting arteries and veins, bypassing normal brain tissue. It typically forms before birth and can cause seizures, headaches, or neurological issues, though many are asymptomatic until they rupture, causing a dangerous brain hemorrhage.”