What is a Brain Aneurysm?

A brain aneurysm is a condition where a blood vessel in the brain weakens and bulges, forming a sac-like swelling. While some aneurysms remain small and cause no symptoms, others may enlarge or rupture, leading to serious complications such as a hemorrhagic stroke.

Warning Signs and Symptoms

Brain aneurysms often do not cause noticeable symptoms unless they rupture. However, in some cases, they may press on surrounding nerves, leading to:

• Sudden, severe headache (often described as the “worst headache ever”)
• Pain above or behind the eyes
• Blurred or double vision
• Drooping eyelids
• Numbness or weakness on one side of the face
• Stiff neck
• Nausea and vomiting

If a brain aneurysm ruptures, it requires immediate emergency medical attention as it can be life-threatening.

Risk Factors

Certain factors may increase the likelihood of developing a brain aneurysm:

• High blood pressure (hypertension)
• Smoking
• Family history of aneurysms
• Age (more common in people over 40)
• Gender (women are at higher risk than men)
• Drug use (such as cocaine)
• Heavy alcohol consumption
• Certain genetic disorders (e.g., polycystic kidney disease, connective tissue disorders)

Diagnosis