Knowledge saves lives.

Learn the early symptoms & warning signs now to know what to look for with a brain aneurysm.

The Most Common Signs and Symptoms of a Brain Aneurysm May Include:

Brain Aneurysm symptoms may vary by person, with many Brain Aneurysms often presenting no visible symptoms or signs. When present, the symptoms of Brain Aneurysms may be similar to those of some other conditions. Remember that not all individuals with Brain Aneurysms will have symptoms and that it is unusual for any one individual to have all of these symptoms. It is most common for individuals to experience some variance or combination of the signs and symptoms listed.

Know the Warning Signs

If you or a loved one experience any of the following sudden warning signs
or symptoms of a ruptured brain aneurysm, CALL 911.



The sudden onset of an extremely severe and crippling headache (Worst Headache Of My Life) is one of the most common symptoms of a leaking or ruptured Brain Aneurysm underway.  The headache is entirely unusual and a different from a migraine or normal headache as it is excruciating and often described as "feeling as if my head is going to explode."

"Gun Shot" or "BOOM"

Many individuals hear what they believe is a perceived gun shot sound or extremely loud explosion (sometimes as they are sleeping) and ask others around them if they heard the same thing; however, the sound is strictly internal to the person with a Brain Aneurysm and is not something heard by others.  It is believed that this loud popping sound is a result of the aneurysm expanding and/or beginning to rupture.


Sensitivity to Light

A person may experience a sudden heightened sensitivity to outdoor/indoor light as well as feeling pain behind or above one eye, or an observer may notice dilation of their pupils. Other early warning signs of a brain aneurysm include blurred vision.

Our Foundation

The Lisa Foundation, a 501 (c)(3), is the leading private funder of Brain Aneurysm initiatives that directly or indirectly support awareness, education, research, and survivor support in the U.S.

Our Mission

To foster a national dialogue and understanding around Brain Aneurysms and drive better patient outcomes through pioneering education, research, and support.

Contact Us

The Lisa Foundation

Administrative Office & Mailing Address

P.O. Box 13

Frankenmuth, MI 48734

Stay Informed

Sign up for our newsletter to receive important news and updates.

Scroll to Top