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Aneurysm Symptoms and Causes

An aneurysm is a bulging, weakened area in the wall of a blood vessel resulting in an abnormal widening or ballooning greater than 50 percent of the normal diameter. An aneurysm may occur in any blood vessel, but is most often seen in an artery rather than a vein. The larger an aneurysm becomes, the greater the risk of rupture. Aneurysm symptoms include headaches, neck stiffness, nausea and sensitivity to light. Worsening aneurysm symptoms can include confusion, coma or seizure. Factors that have been identified as aneurysm causes include cigarette smoking, high blood pressure, high cholesterol and alcohol consumption. Additionally, aneurysm causes can be rooted in genetic disorders and diseases such as polycystic kidney disease, neurofibromatosis, Ehlers-Danlos syndrome and Marfan's syndrome.