In some cases there may be warning signs of a brain aneurysm but not always.
People have had brain aneurysms without any warning signs.
A brain aneurysm is a weakness in a blood vessel in the brain that balloons and fills with blood.
Most intracranial aneurysms occur between the underside of the brain and the base of the skull.
The brain aneurysm can leak or rupture, causing life-threatening bleeding.
An unruptured aneurysm usually causes no symptoms.
A key symptom of a ruptured aneurysm is a sudden, severe headache.
Treatments for an unruptured aneurysm include medications to control blood pressure and procedures to prevent a future rupture.
Emergency medical care is needed for a ruptured aneurysm.
About 75% of people with a ruptured brain aneurysm survive longer than 24 hours.
A quarter of the survivors, though, may have life-ending complications within six months.
Call 911 or go to an emergency room if you think you are having symptoms of a brain aneurysm or ruptured aneurysm.
If the brain aneurysm is not yet ruptured then the warning signs that you might have a brain aneurysm are headache or pain behind or above the eye, which can be mild or severe and blurred or double vision.
If you think you have a brain aneurysm you need to get to the emergency room right away because if a brain aneurysm does rupture it can kill you pretty quickly.
Sometimes people get a brain aneurysm without any symptoms but most times the brain aneurysm will alert you through the above mentioned symptoms and if so seek medical attention before it ruptures.