what can cause a brain aneurysm?
A , Administration, answered. Brain aneurysms can result when arteries weaken and deteriorate. They often form at weak spots in the artery, such as where the artery branches or forks. There are many possible causes for artery wall weakening that can lead to the formation of a brain aneurysm. These include: head trauma.
We usually donât know why an aneurysm bleeds or exactly when it will bleed. We do know what increases the chance for bleeding: High blood pressure is the leading cause of subarachnoid hemorrhage. Heavy lifting or straining can cause pressure to rise in the brain and may lead to an aneurysm rupture. Strong emotions, such as being upset or angry, can raise blood pressure and can subsequently cause aneurysms to rupture.
The underlying cause of an aneurysm is a weak spot in the artery wall. Over time, repetitive pounding by the blood as it's forced through the veins with each heartbeat causes the weak spot to bulge. The higher the person's blood pressure, the more likely an aneurysm is to form.