There are two primary types of vein conditions:
(1) Spider veins are tangled groups of tiny blood vessels just under the skin’s surface that resemble spider webs, hence their name. Typically, they are red, blue or purple and are clearly visible on the thighs, lower legs and face.
(2) Varicose veins are swollen, twisted veins that can be seen through the skin. They often occur in the legs and cause aching or throbbing. Both types of vein conditions can produce physical symptoms—from leg pain and fatigue to itching, burning and nighttime restlessness.