A varicocele is enlargement with the veins that transportation oxygen-depleted blood faraway from the testicle. Every testicle provides a spermatic cord holding it up. The spermatic wire has veins, arteries, and nerves. The veins have valves that continue to keep blood flowing in a single route – towards the heart. https://www.sgvascularctr.com/a-guide-to-varicocele-treatment-in-singapore/