Congenital valve defects: A number of people are born with blood valves that don't do the job effectively. These valves might make it possible for blood to pool or back again up into the legs, leading to varicose veins. If you arrive at a Mayo Clinic vein clinic, it's possible https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-a-comprehensive-guide/