Diagnosis and treatment of varicose veins: a review.

Varicose veins are superficial vessels that are abnormally twisted, lengthened, or dilated and are usually caused by inefficient or defective valves within the vein. They represent a medical condition accompanied by symptoms deserving treatment. Varicose veins are a manifestation of venous disease that may precede later severe complications. Varicosities cause cutaneous disease in addition to complications specific to the venous system. This article reviews the epidemiology, adverse sequelae, anatomy, pathophysiology, evaluation, and treatment of varicose veins.