[The problem of the perforating veins].

Any obstacle slowing down or blocking the venous return, causes hypertension, then dilatation which destroys the valves of the perforating or muscular veins. The superficial veins become flooded. A symptomatic treatment with sclerosis or stripping is not sufficient. The valve is of crucial importance and varices represent a symptom indicating a snag in the venous return. The phlebologist's role is to look for and identify the snag as well as finding a treatment.