At the Vein Clinic, a unique service provided at the Cotton-O’Neil Heart Center, we are please to offer effective treatment for venous insufficiency, the underlying cause for varicose veins. Venous insufficiency develops when the valves that usually keep blood flowing out of your legs become damaged or diseased. People have the outward appearance of varicose veins but inside a progressive medical condition is developing. Fortunately, medical technology available at the Cotton O’Neil Heart Center can help those with this often-hereditary disease