Q. What’s the difference between spider veins and varicose veins? How can I tell which ones I have?
A. Actually, spider veins are a type of varicose vein. Spider veins are small, dilated blood vessels that appear blue and usually cluster together on the skin’s surface on the upper thigh, around the knee or on the ankles. In size, spider veins (known medically as telangiectasias) range between 0.5 and 1 millimeter. Varicose veins, which appear on your legs, are much larger and appear to bulge out from the skin’s surface. These unsightly, enlarged, sometimes twisted veins are often painful and ache.