What are varicose veins? Varicose veins are twisted, enlarged veins, often dark blue in color, located near -or raised above the surface of the skin. They are often a symptom of an underlying condition called venous insufficiency.What are the symptoms?

What causes spider veins? Spider veins can be caused by hormones and often occur during pregnancy. Although spider veins may produce symptoms, they along with possible feeder veins deeper in the skin may, cause discomfort. Spider veins occur most often in women, although they are also seen in men.