Answer:
The rupture of an aneurysm causes internal bleeding. The risk of an aneurysm developing and rupturing varies between individuals. Smoking and high blood pressure are major risk factors for the development of an aneurysm. Some types of aneurysm may need surgical treatment to prevent rupture.
Explanation:
A brain aneurysm happens when a bulge forms in a blood vessel in the brain and fills with blood. Aneurysms often produce no symptoms unless they burst open or leak blood. A ruptured aneurysm causes severe headache and can lead to a fatal stroke.
