Pooled data from 6 studies show a moderate FSFI improvement (SMD 0.52) after labiaplasty, but low certainty undermines the finding
Journal: European Journal of Obstetrics, Gynecology, and Reproductive Biology | Published: 2025-12-13 | Type: Systematic Review, Meta-Analysis | PMID: 41401752 Authors: Zulfikaroglu E (Eva Women Health Clinic, Ankara), Kurban D (Ankara Medipol University) Funding/COI: Funding not listed; authors declare no competing interests
A meta-analysis of 11 studies found that female genital cosmetic surgery (FGCS)—primarily labiaplasty with or without clitoral hood reduction—was associated with moderate short-term improvements in sexual function scores and genital self-image. The pooled standardized mean difference was 0.52 (95% CI 0.38–0.65), which sounds tidy until you read how it was generated: almost entirely from uncontrolled before-after cohorts with no comparison group. The authors say so themselves—this evidence is low-certainty and vulnerable to regression to the mean and expectancy effects.
This is a methodologically honest review that accurately diagnoses its own limitations. The authors used Cochrane RoB 2, Newcastle-Ottawa Scale, and JBI checklist for bias assessment—appropriate tools for a mixed-design corpus. Random-effects pooling was used, which is the right call given expected heterogeneity. Subgroup analyses by technique and follow-up duration were prespecified, not post hoc.
The problem is the underlying studies, not the review's handling of them. Nearly all included studies are single-arm pre-post designs: patients are their own controls, there's no blinding, and patient-reported outcomes like FSFI are susceptible to demand characteristics and expectancy bias. Certainty of evidence is rated low by the authors themselves. Follow-up periods across studies varied widely, and long-term (≥12 months) data are sparse.
This review does the honest thing: it finds a statistically coherent signal and immediately explains why you shouldn't trust it. A pooled SMD of 0.52 across pre-post cohorts with no controls is not evidence that labiaplasty improves sexual function—it's evidence that women who elect surgery report feeling better afterward, which conflates the procedure with placebo, expectancy, and the passage of time. The review is competently executed given what it had to work with. The field's problem is that no one has run a proper controlled trial, and this paper makes that gap hard to ignore. Worth reading for the methodology critique; not worth citing as evidence of efficacy.