Brain aneurysm also known as cerebral aneurysm, is a blood-filled bulge form or ballooning of the blood vessel in the brain. Brain aneurysms develop as a result of thinning artery walls. Because those areas of the vessels are weaker, aneurysms frequently form at forks or branches in arteries.
Brain aneurysms show no symptoms until they rupture or leak in which the bleeding at the brain is called hemorrhagic stroke, that could lead to brain damage and is life-threatening. A ruptured brain aneurysm typically develops between the brain and the delicate tissues that cover the brain; this is called subarachnoid hemorrhage.
However, there are brain aneurysms that do not rupture or create any symptoms or problems. Aneurysms are commonly found during examinations for other disorders. A variety of techniques are used as treatments for ruptured aneurysm, aim to block blood from entering into the aneurysm and to divert blood flow across the aneurysm to prevent rupture.
Seek immediate medical attention if you are with someone who has a sudden, severe headache, loses consciousness, or has a seizure.
The causes of brain aneurysm are still unknown, or the causes of leakage or rupture, but anything that increases your blood pressure can be dangerous. Higher blood pressure makes blood push harder against blood vessel walls, which may increase the risk.
The likelihood of a brain aneurysm or an aneurysm rupture can increase because of artery wall weakness caused by the following: