When a couple is having difficulty conceiving, the male partner often gets evaluated last – despite male-factor infertility contributing to around 40-50% of cases. A varicocele is among the most commonly identified and potentially correctable findings in that evaluation. At Lazare Urology in Brooklyn, varicocelectomy consultations frequently involve men who have just received a varicocele diagnosis and are trying to understand what it means for their fertility, whether surgery is the right response, and what the evidence actually shows about outcomes. The answers are more nuanced than most online sources suggest, and getting them right matters for making the decision that serves a couple’s specific situation.
What a Varicocele Is and Why It Matters for Sperm
A varicocele is an abnormal dilation of the veins within the pampiniform plexus – the network of veins that drains blood from the testicle. It’s structurally similar to a varicose vein, and like varicose veins in the leg, it develops when valves in the vein fail to maintain proper one-way blood flow, allowing blood to pool.
Varicoceles are found in approximately 15% of all men and in roughly 35-40% of men evaluated for infertility. The left side is affected far more commonly than the right, because the left testicular vein drains at a 90-degree angle into the left renal vein, creating more resistance to flow and greater susceptibility to retrograde pooling. Bilateral varicoceles occur in a meaningful minority of cases.
The mechanism by which varicoceles affect fertility is not completely understood, but the dominant hypothesis centers on elevated testicular temperature. The testes function at approximately 2-4°C below core body temperature – a requirement for normal spermatogenesis. The pooling of blood in a varicocele brings warmer blood into sustained contact with the testicular venous drainage, raising local temperature and impairing the thermal environment in which sperm are produced. Additional proposed mechanisms include oxidative stress, impaired hormone signaling, and direct vascular effects on spermatogenesis.
The result, in men with varicoceles and impaired fertility, is typically a pattern of semen analysis findings characterized by low sperm count, poor motility, or abnormal morphology – sometimes all three. The pattern is recognizable to an experienced urologist and contributes to the clinical determination of whether the varicocele is likely contributing to the fertility problem.
Not Every Varicocele Needs to Be Fixed
This is the point that gets lost in the anxiety of a new diagnosis. The presence of a varicocele does not automatically mean the varicocele is causing a problem or that surgery is indicated.
Many men have varicoceles and father children without difficulty. Many men with varicoceles have entirely normal semen parameters. The clinical question is not simply whether a varicocele is present, but whether it is associated with abnormal semen parameters in a man who is attempting to conceive and whose partner has been evaluated and has no identified female-factor infertility.
The current evidence-based guidance from the American Urological Association and the American Society for Reproductive Medicine supports varicocele repair in men with a palpable varicocele, documented infertility, and at least one abnormal semen parameter – when no female-factor infertility is identified or when female-factor infertility is not contributing significantly. In men with normal semen parameters, current evidence does not support repair for fertility purposes. In adolescents and men who aren’t actively trying to conceive, the indication is more complex and typically involves monitoring rather than immediate intervention.
The honest answer for a man newly diagnosed with a varicocele is: this finding may or may not be relevant to your specific situation. A complete male infertility evaluation – including a careful semen analysis, hormone profile, and physical examination – is the appropriate starting point before a decision about repair is made.
Why Microscopic Varicocelectomy Is the Preferred Surgical Approach
When repair is indicated, the technique used matters for both outcomes and complication rates. There are several surgical approaches to varicocelectomy – open retroperitoneal, open inguinal, laparoscopic, and subinguinal microsurgical – and they are not equivalent.
Microscopic varicocelectomy via the subinguinal approach is considered the gold standard by most reproductive urologists. The procedure uses high-powered optical magnification (typically 6x to 25x) and requires entry only at the level of the external inguinal ring – a small incision that allows the surgeon to identify and ligate the dilated internal spermatic veins while preserving the testicular artery, lymphatic vessels, and the vas deferens.
The microsurgical approach has the lowest reported complication rates among varicocelectomy techniques. Recurrence rates – the varicocele reforming after repair – are lowest with the microscopic approach because magnification allows the surgeon to identify and ligate small venous tributaries that would be missed with naked-eye or laparoscopic approaches. Hydrocele formation, the most common complication of varicocelectomy (caused by interruption of lymphatic vessels), is also minimized when lymphatics can be individually identified and preserved under magnification. Testicular artery injury, which can compromise testicular function, is the most serious surgical risk and is significantly less likely under optical magnification.
The procedure is performed under anesthesia – at Lazare Urology, in the in-office operating room with a board-certified anesthesiologist – and takes approximately 1-2 hours depending on whether repair is bilateral. Recovery involves a few days of reduced activity, with return to desk work typically within a week and physical activity resuming within 2-3 weeks.
What the Evidence Shows About Fertility Outcomes
The outcomes data for varicocelectomy is the subject of ongoing clinical discussion, and presenting it honestly means acknowledging both what the evidence supports and where it is less clear.
Meta-analyses examining varicocelectomy in men with clinical varicoceles, oligospermia, and otherwise unexplained infertility consistently show improvement in semen parameters – particularly sperm count and motility – following repair. Improvement is typically evident at 3-6 months after the procedure, with some studies showing continued gains at 12 months. Reported improvement in sperm count after varicocelectomy ranges considerably across studies, but averages in the range of a doubling of baseline counts are not unusual.
Spontaneous pregnancy rates in couples where the male partner had varicocelectomy for infertility are generally reported in the 30-40% range at 12 months post-procedure in studies with appropriate controls, compared to rates around 15-20% in untreated couples. These are population averages, and individual outcomes vary considerably based on the severity of the varicocele, baseline semen parameters, duration of infertility, and the partner’s age and fertility status.
One clinical consideration that isn’t always raised with patients is the relationship between varicocelectomy and assisted reproduction. For some couples, IVF or ICSI with male-partner sperm is the more direct path to pregnancy, particularly when the female partner’s age is a significant factor and time is limited. In these situations, varicocelectomy may still improve semen quality and reduce the reproductive technology requirements, but the timing and sequencing of decisions deserves explicit discussion. A urologist who engages this conversation – rather than simply recommending surgery without situating it in the couple’s broader reproductive picture – provides better care.
Consulting With Lazare Urology About Varicocele Repair
If you’ve been diagnosed with a varicocele in the context of infertility, or if you’ve been told you have a varicocele and want to understand whether it’s relevant to your reproductive goals, the consultation at Lazare Urology is the right next step. Dr. Lazare evaluates each patient’s full clinical picture – including semen analysis, hormonal evaluation, and physical examination – to determine whether varicocelectomy is indicated and what the realistic outcome expectations are for that individual.
Lazare Urology serves men from throughout Brooklyn, Manhattan, Queens, and the greater New York area. Contact the office to schedule a consultation.