Some form of venous insufficiency affects up to 25% of men and 40% of women in the United States. While most persons seek treatment because varicose veins are unsightly, most will also experience symptoms such as aching pain, night cramps, leg fatigue, leg heaviness or leg restlessness. If left untreated, nearly 50% of patients with significant superficial venous insufficiency will experience chronic venous insufficiency characterized by lower extremity swelling, eczema, pigmentation, hemorrhage and ulceration.