Spider veins can be cosmetically unsettling to some people, especially when bathing-suit season arrives. Spider veins, which are common and medically harmless, are created when the valves that control the pressure of the blood pooling in the veins weaken. This causes the small veins located just below the skin to become gorged with blood, causing the veins to widen and become visible. While spider veins can crop up anywhere, they most often appear on the legs in spider-like patterns. Dr. Yessenow can rid your legs of these pesky veins by using a laser or an intense light, which is directed to the veins, eliminating them permanently. Laser treatments feels similar to being snapped over and over with a large rubber band.