Certain people have a higher risk for brain aneurysms than the general population. These include individuals with a strong family history (more than one first degree relative with brain aneurysm), or a history of certain conditions such as polycystic kidney disease or collagen vascular diseases.
If you are such an individual, screening for brain aneurysms using imaging such as MRA, (Magnetic Resonance Angiography) may be advisable. You should discuss this with your primary care physician.