Varicose
The problem of spider veins has been around for quite some time and there are many causes of spider veins. Spider veins occur when the walls in the veins become weak which leads to an enlargement of the blood vessels. This is the medical definition, however there is a list of other causes of spider veins to include, overexposure to the sun, hormone imbalances, smoking, drinking alcohol, heredity, smoking and obesity.
