Your veins carry blood in your coronary heart. Valves in these veins prohibit the blood stream to 1 route. Valves that weaken or that don’t close properly cause blood to pool (collect) inside of a vein. This known as a varicose vein. In the remaining, the SSV may drain into https://www.sgvascularctr.com/service/vein-diseases-varicose-veins/