What is a Brain Aneurysm?

What is a brain aneurysm?

A brain aneurysm is a bulge in a blood vessel in the brain due to unknown causes.

There are three types of brain aneurysms:

  • unruptured aneurysm;
  • “leaking” aneurysm (causing leaking of blood);
  • ruptured aneurysm.

Mostly, a brain aneurysm does not rupture. In other words, it’s an unruptured aneurysm. It often causes no symptoms.

On the other hand, when it’s ruptured aneurysm or “leaking” aneurysm, it usually comes with a sudden severe headache.

Diagnostic tests include:

  • CT (computerized tomography);
  • cerebrospinal fluid test;
  • MRI (magnetic resonance imaging);
  • cerebral angiogram.


Keywords: brain aneurysm.

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