What causes an intracranial aneurysm?
There is so single cause. Some people suffer from congenital defects that weaken the walls of their blood vessels and make them more susceptible to aneurysms. Other factors include atherosclerosis, vascular disorders, trauma, infection, drug abuse and malignancies. Who is susceptible to an intracranial aneurysm? Between 1.5 and 8 percent of the population may suffer from intracranial aneurysms. Some of these will go forever undetected, and will never rupture. The peak age for rupture is 40 to 70. Women are more likely to be affected than men. People suffering from hypertension, adult polycystic disease (a condition that causes multiple cysts and lesions on organs such as the kidney and the liver), kidney disease and connective tissue diseases including Marfan Syndrome (an inherited disorder affecting the connective tissues of the heart, lungs eyes and skeletal system) are at increased risk for intracranial aneurysms. How often do aneurysms rupture? No one knows for sure. However, sever
