A cerebral aneurysm occurs as a result of a weakened blood vessel in the brain that leads to the protrusion of the vessel wall. The rupture of a cerebral aneurysm, which is also referred to as a brain or intracranial aneurysm, occurs in an estimated 30,000 people in the United States each year, according to an August 2009 article on the Neurosurgery Today website. Though certain people with this condition are asymptomatic, it is important to be aware of potential symptoms of a cerebral aneurysm.
Headache
A cerebral aneurysm may cause pain to develop above and behind the eyes. Such pain can cause a headache to occur that is localized to the front portion of the head. People who experience a ruptured cerebral aneurysm may develop a severe, migraine-like headache that appears very suddenly and can be debilitating. The National Institute of Neurological Disorders and Stroke (NINDS) states that these types of headaches are often described by patients as "the worst headache of my life." Some people with this condition may also have pain that extends down into the neck, which may lead to complaints of a stiff neck. If you experience persistent or severe headaches, seek additional medical care for further neurological evaluation.
Vision Problems
Vision problems may be a symptom of a cerebral aneurysm in some people. Such problems may include blurred or double vision or dilated pupils. Some patients may experience extreme sensitivity to light---a medical condition called photophobia---which may become worse if symptoms of headache or migraine are also present. These visual changes can occur regardless of whether or not the cerebral aneurysm has ruptured. If you experience visual problems---especially if you also experience headache---do not hesitate to seek additional care from your doctor.
Loss of Sensation
Certain people who have a cerebral aneurysm may experience a progressive loss of sensation in certain regions of the body. Numbness, weakness or paralysis may develop if you have a cerebral aneurysm. Such symptoms---especially those that occur in the facial muscles---may make it difficult for some patients to speak or communicate with others. If you experience loss of sensation in your face or other regions of your body, speak with your doctor.
Nausea or Vomiting
Patients who experience a ruptured cerebral aneurysm may experience sudden and severe nausea or vomiting. These symptoms may be related to the onset of severe migraine pain or visual difficulties. If you experience nausea or vomiting in conjunction with additional symptoms related to a cerebral aneurysm, seek medical care as soon as possible.


