Genetic risk factors

Aneurysms form when the walls of the brain’s arteries become thin and fragile. While some individuals are born with them due to congenital conditions, others may have a higher risk, especially if a close family member has experienced a brain aneurysm. Women and those over 40 are particularly more susceptible to developing them.

Risk Factors & Effects

Certain health conditions increase the risk, including arteriovenous malformation, polycystic kidney disease, and Marfan syndrome. High blood pressure, smoking, alcohol, and drug use (especially cocaine) can weaken artery walls.

A rupture causes brief but dangerous bleeding, damaging brain cells and increasing skull pressure. This can quickly lead to unconsciousness, brain damage, or death.

Complications from aneurysms

Serious complications can still occur after a rupture. The blood vessel may re-bleed, nearby vessels could narrow and trigger a stroke, or fluid buildup in the brain (hydrocephalus) may cause tissue damage and pressure.

Prevention

Brain aneurysms aren’t always preventable, especially with a hereditary risk. However, quitting smoking and lowering blood pressure through a healthy diet, exercise, and limited alcohol can help. These steps also reduce the risk of other serious conditions like heart disease and kidney issues.