An aneurysm occurs when a blood vessel in the brain weakens and forms a bubble, which may rupture, causing severe damage or death.

The primary symptom is a sudden, severe headache, often described as the worst headache ever experienced. Additional symptoms include drooping eyelids, blurred vision, nausea, seizures, and loss of consciousness.

Risk factors include high blood pressure, smoking, alcohol use, family history, and certain genetic conditions. Diagnosing an aneurysm requires imaging tests like CT scans, MRIs, or cerebral angiography.

Treatment may include monitoring, surgery, or endovascular embolization, depending on the aneurysm’s size and risk of rupture. Preventive measures include managing blood pressure, avoiding smoking, and regular medical check-ups.