Overview
A brain aneurysm is a berry-shaped bulge in an artery in or near the brain. Normally, arteries are strong and elastic, like hoses. An aneurysm develops when part of an artery wall becomes weak, stretches outward, and forms a bulge.
Aneurysms can develop in various parts in the body, for instance in the largest artery in the belly (abdominal aortic aneurysm) or an artery in the head (brain aneurysm). Brain aneurysms often form at points where the arteries that supply the brain with blood split and branch off.
Many people with a brain aneurysm will never know that they have one. But others experience symptoms – or their aneurysm is more likely to eventually rupture (burst) and cause life-threatening bleeding in the brain. To prevent such ruptures and relieve the symptoms, treatment is sometimes considered.
A brain aneurysm is a berry-shaped bulge in an artery in or near the brain. Normally, arteries are strong and elastic, like hoses. An aneurysm develops when part of an artery wall becomes weak, stretches outward, and forms a bulge