Veins are slim-walled vessels that perform to return blood back again to the guts. The veins while in the legs require to transport blood in opposition to gravity to satisfy their purpose and they rely on two mechanisms to realize this: Varicose veins are twisted, enlarged veins beneath the surface https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-from-the-perspective-of-a-vascular-surgeon/