Veins can bulge with pools of blood when they fail to circulate the blood properly. These visible and bulging veins, called varicose veins, are more common in the legs and thighs, but can develop anywhere in the body.
Small "spider veins" also can appear on the skin's surface. These may look like short, fine lines, "starburst" clusters, or a web-like maze. They are typically not palpable. Spider veins are most common in the thighs, ankles, and feet. They may also appear on the face. The medical term for them spider veins is telangiectasias.
Spider veins are small superficial blood vessels that appear red or blue in the skin. They commonly occur on the legs, but are also found on the face or other areas of the body.