An increase in vein size inside the loose pouch of skin that covers the testicles is known as a varicocele. The testicles’ blood, which is devoid of oxygen, is transported through these veins. When blood begins to collect in veins rather than the scrotum, a varicocele develops. The pampiniform plexus is the name of these Varicocelectomy. These veins resemble varicose veins (twisted, swollen veins, found in the leg.) It develops during adolescence, Causes Varicocele.