A varicocele is definitely an enlargement with the veins within the free bag of skin that retains your testicles (scrotum). It’s much like a varicose vein you might see with your leg. Varicoceles are a common reason for lower sperm manufacturing and reduced sperm quality, which can result in infertility. https://www.sgvascularctr.com/what-are-some-common-vein-treatments/