Medically reviewed by Anju Goel, MD A brain aneurysm (cerebral aneurysm) is an abnormally bulging and weakened area of an artery in your brain. If it ruptures (bursts), it may cause a stroke and brain ...

When brain aneurysms rupture, 40 percent of cases end in death, and for those that do survive, 66 percent are left with lasting neurological damage.

A brain aneurysm that bursts, or ruptures, can lead to serious medical problems. However, many aneurysms do not rupture, and some unruptured aneurysms do not require treatment.

Brain aneurysms are the 'silent killer' A brain aneurysm, formally known as a cerebral aneurysm, occurs when there is a bulge in a weak area of an artery in the brain. When blood flows to the ...