Subarachnoid Hemorrhage

The most common problem associated with cerebral aneurysms is rupture, which usually leads to subarachnoid hemorrhage. Subarachnoid hemorrhage (SAH) simply means hemorrhage, or bleeding, in the subarachnoid space. The subarachnoid space is the space around the brain where cerebrospinal fluid (CSF) circulates, and where the major blood vessels are located. The most common symptom of spontaneous SAH is a severe headache, with patients often describing it as “the worst headache of my life”.