Subarachnoid hemorrhage

Overview

Subarachnoid hemorrhage, a medical emergency, is usually from a bulging blood vessel that bursts in the brain (aneurysm). It may lead to permanent brain damage or death if not treated promptly.

Symptoms

The main symptom is a sudden, severe headache.

Treatments

Hospital care is needed for supportive care and to stop bleeding and limit brain damage. Treatment may include surgery or catheter-based therapy.