Varicocelectomy

A varicocele is an enlargement of the veins that drain blood from the testicle, caused by faulty valves. Varicocelectomy is the surgery to repair it. It is done for two main reasons: to improve fertility when a varicocele is affecting semen quality, and to relieve chronic scrotal pain. It is often described as the most common correctable cause of male infertility — meaning that, unlike many causes, there is a genuine, well-evidenced surgery available.

The technique genuinely matters for the result. The microsurgical subinguinal approach — done under a microscope through a small cut below the groin — is the current gold standard. The magnification lets the surgeon tie off the faulty veins while carefully sparing the testicular artery and the lymph vessels. That protects against the two main complications: a hydrocele (from lymph damage) and testicular shrinkage (from artery injury). Laparoscopic repair is faster but has trade-offs, and embolization (blocking the vein through a catheter) is less invasive but has a higher chance of needing a repeat procedure.

For fertility, the outcome data is genuinely encouraging, though results vary by individual factors. A pooled analysis found meaningful semen improvement in about 63% of men, with microsurgical approaches doing best. One 2024 study found sperm concentration rising 50% and total motile count rising 113% in men with primary infertility. A widely cited series of over 1,500 microsurgical operations reports natural pregnancy in 43% at one year and 69% at two years, in couples without a separate female factor.

Some patterns help predict who benefits most. Younger age and a shorter time trying to conceive are both linked to better outcomes. That is one of the main reasons earlier assessment, rather than long delay, is advised once a significant varicocele with abnormal semen is confirmed. Higher-grade varicoceles have shown the greatest improvement in some studies, though men with lower-grade ones can still benefit.

For men whose main problem is pain rather than fertility, results are strong: one study of microsurgical repair found pain resolved in 91% of appropriately selected men, with high satisfaction. The important caveat is confirming the varicocele is genuinely the source of the pain first, since not all scrotal discomfort in a man who happens to have a varicocele is caused by it.

A meta-analysis of multivariable studies specifically found that microsurgical and subinguinal approaches demonstrated higher surgical efficacy rates compared with other surgical methods and approaches.