Currently medical science has no means for prevention of a brain aneurysm. Saccular (berry) and fusiform aneurysms may have genetic causes still be investigated. A dissecting aneurysm, a tear along the length of an artery, often occurs as a result of a traumatic head injury, although they sometimes appear for no indicated cause.
The chance of preventing a brain aneurysm rupture may be improved, particularly for people known to have the condition, by making sensible lifestyle choices. High blood pressure can be managed through proper diet, nutrition and, in some cases, medication. Cigarette smoking and the use of cocaine and other stimulants should be completely avoided or stopped as they are contributing factors to hemorrhagic stroke caused by a ruptured brain aneurysm.