Brain Aneurysm

Brain Aneurysm

Signs and Symptoms
Diagnosis
Treatment

Signs and Symptoms

Brain aneurysms typically do not cause any symptoms until they rupture. The hallmark symptom of a ruptured aneurysm is a sudden and extremely severe headache that may occur with nausea, vomiting, stiff neck, impaired consciousness, seizures or coma.

Some brain aneurysms do not rupture, although they should still be promptly diagnosed and treated. People with unruptured aneurysms may not have any symptoms at all, although others may experience the following:

• Cranial nerve palsy
• Dilated pupils
• Double vision
• Localized headache
• Pain above and behind the eye

Reviewed by health care specialists at UCSF Medical Center.
Last updated May 8, 2007