Varicose veins are visible veins in the leg that bulge, often protruding through the skin. They are the result of venous insufficiency: blood that pools in the vein because of a faulty valve and causes the protrusion. Varicose veins are a symptom of early stage venous disease. Untreated, they can lead to increased symptoms and worsening appearance. Varicose veins affect approximately half the U.S. population, and in addition to causing pain and discomfort, those with varicose veins struggle unnecessarily with their appearance. They often limit social activity and experience a significantly change in their quality of life.