A brain aneurysm is an abnormal bulge or "ballooning" in the wall of an artery in the brain. Due to the fact that they are frequently the dimension of a small berry, they are occasionally called berry aneurysms. Most brain aneurysms create no symptoms till they become large, start to leak blood, or burst. If a brain aneurysm presses on nerves in your brain, it can cause symptoms and signs. These can include: A sagging eyelid; Double vision or other changes in vision; Pain above or behind the eye; A dilated pupil; Numbness or weakness on one side of the face or body. If a brain aneurysm ruptureds, symptoms can include a sudden, severe headache, queasiness and throwing up, stiff neck, loss of consciousness, and signs of a stroke. As blood passes via the weakened capillary, the blood pressure causes a small area to bulge in an outward direction like a balloon. Aneurysms can develop in any capillary in the body, but the 2 most common areas are: the artery that delivers blood far from the heart to the remainder of the body; the brain. Treatment might be advised to prevent it bursting in future if a brain aneurysm is spotted prior to it fractures. Unruptured brain aneurysms periodically cause symptoms if they're especially large or press versus cells or nerves inside the brain.
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