Brain Arteriovenous malformations (AVM) are rare. Each year 1.3 people out of 1,00,000 have an AVM detected. Brain AVMs can present as spontaneous haemorrhage (30–82%), seizures (16–53%), headache (7–48%) or neurological deficit (1–40%). The risk of spontaneous haemorrhage is 2–4% per year and the risk of rebleeding is 6% in the year after the first haemorrhage.
Inspite of the rare nature of disease, it is of immense clinical significance because each episode of haemorrhage is associated with a 1–15% mortality rate and 20–30% rate of permanent neurological deficit. Surgery and anaesthesia in a patient who already had an episode of bleeding carries high risk. Here we present a case of 29 years pregnant female, a diagnosed case of AVM, who had to be taken for immediate caesarean section.