Which condition is commonly described as a painless scrotal swelling that can cause infertility?

• A. Hydrocele
• B. Epididymal Cyst
• C. Testicular Tumor
• D. Varicocele

Answer: (D)

Varicocele presents as a painless scrotal swelling caused by dilation of the pampiniform venous plexus. This condition is a common cause of male infertility because the increased venous pressure and higher scrotal temperature impair spermatogenesis, leading to lower sperm count and poorer sperm quality over time.

Clinically, you often feel a “bag of worms” in the scrotum, especially when standing, and it may become less noticeable when lying down. It tends to affect the left side more due to the way the testicular vein drains. Infertility concerns arise when semen analysis shows oligospermia or poorer sperm morphology, and management is considered if fertility is a priority or symptoms are bothersome. Treatments include surgical repair (varicocelectomy) or minimally invasive radiologic techniques to obstruct the affected veins, with some patients showing improved semen parameters after intervention.

Hydrocele, epididymal cyst, and testicular tumors can cause painless scrotal swelling, but they are not typically linked to infertility in the same causal way. A hydrocele is fluid around the testicle, an epididymal cyst is a fluid-filled sac along the epididymis, and a testicular tumor is a new lump that often requires different urgent evaluation.