A varicocele is enlargement with the veins that transportation oxygen-depleted blood faraway from the testicle. Weak or harmed valves may lead to varicose veins. Arteries have blood from the center to the rest of the human body. Veins return blood from the rest of the entire body to the heart. https://www.sgvascularctr.com/looking-for-varicose-vein-treatment-singapore/