Adolescent varicocele: a surgical conundrum

One children's hospital's playbook for deciding which teens with varicocele need surgery

Journal: Fertility and Sterility | Published: 2026-04-30 | Type: Journal Article, Review | PMID: 42066978 Authors: Beland LE, Davis MF, Aiyar S, van Batavia J, Kolon TF, Mittal S (Division of Urology, Children's Hospital of Philadelphia) Funding/COI: No funding listed. All six authors report nothing to disclose.

Summary

This is a narrative review, not a study — the authors describe their own institutional algorithm at CHOP for deciding which adolescent boys with varicocele get surgery versus watchful waiting. There's no new patient data, no systematic search methodology, and no meta-analysis: it's an expert-opinion write-up of one hospital's protocol, framed around a real and unresolved clinical problem — varicocele affects up to 15% of postpubertal boys, but nobody has good long-term data on which of those boys actually go on to have fertility problems.

Claims

• Varicocele affects up to 15% of postpubertal boys.
• Testicular dysfunction from varicocele is attributed to a mix of elevated scrotal temperature, oxidative stress, germ cell apoptosis, and genetic susceptibility.
• CHOP's protocol uses serial testicular volume asymmetry, scrotal ultrasound, endocrine labs, and semen analysis (in Tanner V patients) to decide who needs surgery.
• Surgical candidates are those with persistent volume asymmetry, abnormal semen parameters, or hormonal abnormalities.
• The authors' preferred technique is subinguinal microsurgical repair, cited as having low recurrence and few complications.
• Surgical repair has been shown to improve testicular growth and semen parameters — but the paper does not report original outcome numbers for these effects.
• The authors explicitly state that repair's long-term impact on actual paternity remains unstudied and hard to assess in adolescents.

Study Quality

This is a Review, not a primary study or systematic review — there's no described search strategy, no inclusion/exclusion criteria, no quantitative synthesis of outcomes across studies. It reads as institutional expert opinion: six authors from a single pediatric urology division describing the algorithm they use in their own clinic. The "up to 15% prevalence" figure and the claims about surgery improving testicular growth and semen parameters are stated without specific citations, sample sizes, or effect sizes in the abstract — readers need the full text to trace those numbers back to source studies.

The paper is honest about its own limits, most notably that the field lacks long-term paternity data, which is the only outcome that actually matters for "is this worth operating on a teenager." That's a meaningful admission, but it doesn't change the fact that the algorithm being promoted is one institution's practice pattern rather than something validated against alternative protocols.

Red Flags

• Non-systematic review with no stated search methodology — can't tell how comprehensive or selective the evidence base is.
• No original sample size, effect sizes, or p-values reported in the abstract for any of the outcome claims.
• Describes a single institution's algorithm as the recommended approach without comparison to other centers' protocols or head-to-head outcome data.
• Authors acknowledge the key long-term outcome (paternity) has not been adequately studied in this population — the evidence gap the entire algorithm is trying to work around.

Strengths

• Clean COI disclosure: no funding, no conflicts across all six authors.
• Transparent about the central uncertainty (subclinical testicular dysfunction vs. normal pubertal variation) rather than overselling certainty.
• Multi-modal evaluation criteria (volume asymmetry, imaging, endocrine, semen analysis) are laid out explicitly enough to be scrutinized or replicated by other centers.

Verdict

This is useful for understanding how one respected pediatric urology group thinks about a genuinely unresolved problem, but it's institutional opinion dressed as a review — not evidence synthesis. Worth reading to understand the reasoning framework; not a source for numbers on how well any of this actually works.