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Aneurysm (Brain) (cont.)

What causes a brain aneurysm?

The development of brain aneurysms is considered a controversial topic. Currently, most researchers think that a combination of factors, both genetic and environmental, lead to the development of brain aneurysms. For example, some aneurysms may have a strong genetic component that is inherited (for example, individuals with polycystic kidney disease and arteriovenous malformations are more likely to develop aneurysms). However, environmental pressures such as hypertension are also associated with brain aneurysm development. In addition, some aneurysms are associated with environmental factors like infections or trauma.

Medically Reviewed by a Doctor on 3/24/2014

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