Like most organs, the brain houses a complex network of veins and arteries that bring blood to its many sections and glands. A result of high blood pressure, head trauma or congenital defects, a cerebral aneurysm takes place when a wall of a vein or artery in the brain swells or bulges. Patients may display no symptoms of a small aneurysm, but a larger aneurysm will produce loss of feeling in the face and eye problems.
A cerebral aneurysm may rupture, depending upon its size and growth rate. When a cerebral aneurysm ruptures, the patient may experience severe headache, impaired vision, nausea and loss of consciousness. Generally, a ruptured cerebral aneurysm causes bleeding within the brain and can lead to blood clots within the skull and other problems. Surgery is required to combat a cerebral aneurysm, usually isolating the aneurysm to reduce the risk of it continuing to bleed over the brain.
