A varicocele is enlargement in the veins that transport oxygen-depleted blood far from the testicle. The testicles get oxygen-wealthy blood from two testicular arteries — just one artery for each side with the scrotum. Likewise, There's also two testicular veins that transportation oxygen-depleted blood back toward the center. Las válvulas https://www.sgvascularctr.com/what-are-spider-veins/