Spider veins are similar to and often associated with underlying varicose veins, but there are some major differences. Spider veins are smaller in size, beginning as tiny red capillaries that lie close to the surface of the skin and are easily visible. Spider veins are most commonly found on the thighs, calves, ankles or face, where they often become a cosmetic concern. They can also cause physical symptoms ranging from aching, heaviness and itchiness to night cramps.
Not all spider veins require treatment, particularly if they are not causing pain or other physical symptoms. However, some people decide to have them removed for cosmetic reasons, and treating these veins early could prevent worsening symptoms associated with venous reflux disease.