The VNUS® Closure® Procedure for Varicose Veins Introduction About Venous Disease The Closure Procedure Patient Testimonials Frequently Asked Questions Clinical Outcomes Safety Summary Patient Brochure (pdf document) Contact Us ABOUT VENOUS DISEASE: UNDERSTANDING SUPERFICIAL VENOUS REFLUX Your legs are made up of a network of veins. Healthy leg veins contain valves that open and close to assist the return of blood back to the heart. Venous reflux disease develops when the valves that keep blood flowing out of the legs and back to the heart become damaged or diseased. This can cause blood to pool in your legs and lead to symptoms such as pain, swelling, swollen limbs, leg heaviness and fatigue, skin changes and skin ulcers, and varicose veins. Click here to view a short video on veins (requires QuickTime to view). Normal vein vs. dilated vein Front and back of leg vein anatomy   Perforating vein anatomy       Patient Information | For Health Professionals | Education | Research Faculty/Staff | Job Opportunities | Home