Weak or destroyed valves may result in varicose veins. Arteries carry blood from the center to the rest of the physique. Veins return blood from the rest of the human body to the heart. To return blood to the heart, the veins in the legs should perform from gravity. Also, https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-from-the-perspective-of-a-vascular-surgeon/