Brain aneurysms may run in families. If brain aneurysms run in your family, you are more at risk of having a brain aneurysm than the average 3%. Your risk depends on how many relatives have been affected, and how many closely related to you they are.

Is a brain aneurysm genetic?

In most cases, brain aneurysms are not hereditary, and there is generally only a single case in a family. Occasionally, however, an individual with a brain aneurysm will have other family members who are affected.

Who is most at risk for brain aneurysm?

Brain aneurysms can occur in anyone and at any age. They are most common in adults between the ages of 30 and 60 and are more common in women than in men. People with certain inherited disorders are also at higher risk.