According to the Brain Aneurysm Foundation (BAF), a brain aneurysm is the bulging of a blood vessel in the brain that can rupture and bleed, causing serious brain complications. BrainAneurysm.com reports that nearly one in 15 people in the United States will be diagnosed with a brain aneurysm in their lifetime.
Types
Unruptured brain aneurysms do not cause health problems, says the Mayo Clinic. Ruptured brain aneurysms can lead to stroke, brain damage and death.
Symptoms
The most common symptom of a ruptured aneurysm is an extremely sudden, severe headache. The Mayo Clinic reports other symptoms may occur, including: double vision, sensitivity to light, nausea, seizure and loss of consciousness.
Warning
The Mayo Clinic warns that a ruptured aneurysm constitutes a medical emergency and requires immediate attention. Fifty percent of ruptured aneurysms result in death.
Risk Factors
According to the Brain Aneurysm Foundation, certain factors can increase the risk of developing a brain aneurysm, including: smoking, high blood pressure, blood infections, high alcohol consumption and head trauma. Those with a family history of brain aneurysm are also more at risk.
Complications
A ruptured brain aneurysm can cause serious damage to the brain, reports the Mayo Clinic. Complications that may occur include: brain damage, reduced blood flow to the brain, and swelling of the brain.
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