Illustration copyright 2000 by Nucleus
Communications, Inc. All rights reserved.
Varicose veins are twisted, enlarged veins that can occur anywhere a
vein is close to skin, but occur most often in the legs. Faulty valves in veins
and weakened and stretched vein walls cause varicose veins to develop.
ByHealthwise Staff Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine Specialist Medical ReviewerDavid A. Szalay, MD - Vascular Surgery