What Is a Brain Aneurysm?
3. Congenital Causes
Some people are born with medical conditions that will make a brain aneurysm more likely to occur. It is also more likely to happen if there is a history of the condition in the patient’s family, especially in close relatives. Another potential cause is being born with an abnormally narrow aorta.
Ehlers-Donlos syndrome, which is a connective tissue disorder, is another potential cause. A cerebral arteriovenous malformation, which is abnormal blood vessels in the brain, may also be a cause. Another potential contributing factor is polycystic kidney disease, which is a disease that affects the kidneys and increases blood pressure.
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