What Is a Brain Aneurysm?
A brain aneurysm is a weakened area in the wall of a blood vessel in the brain that bulges outward as it fills with blood. Many aneurysms remain small and never rupture. However, if an aneurysm leaks or bursts, it causes bleeding around the brain (a hemorrhagic stroke), which can be life-threatening.
Symptoms generally fall into two categories:
- Unruptured aneurysm: Often causes no symptoms but may produce mild symptoms if it presses on nearby nerves or brain tissue.
- Ruptured aneurysm: Usually causes sudden, severe symptoms that require emergency medical care.
Possible Signs of an Unruptured Brain Aneurysm
1. Persistent Localized Headache
A headache that consistently occurs in one specific area—particularly behind or above one eye—and differs from your usual headaches may warrant medical evaluation.
