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Venous Insufficiency. Venous insufficiency, also know as venous reflux, is the impaired return of venous blood from the legs and feet, often manifesting as varicose veins, swollen ankles, aching legs, skin changes or venous ulcers. In many cases, venous insufficiency is the result of over-dilation of the venous vessels in the legs.
Almost always, symptoms are caused by the leg muscles not getting enough blood. Whether you have symptoms depends partly on which artery is affected and to what extent blood flow is restricted. The most common symptom of peripheral vascular disease in the legs is pain in one or both calves, thighs, or hips.1  The pain usually occurs while you are walking or climbing stairs and stops when you rest.ther symptoms of peripheral vascular disease include the following: 1  Buttock pain. 2  Numbness, tingling, or weakness in the legs. 3  Burning or aching pain in the feet or toes while resting.