Characterizing Sexual Dysfunction in Females with Hypermobile Ehlers Danlos Syndrome or Hypermobility Spectrum Disorder and Genito-Pelvic Pain

In 44 clinic patients with hEDS, every single one had vestibulodynia — but they were all already there for pelvic pain

Journal: Rheumatology International | Published: 2026-06-12 | Type: Cross-sectional study | PMID: 42283871 Authors: Barton L, Moss C, Ellis C, Kopits I, Flint M, Skovronsky G, Lorenzini S, Perelmuter S, Beckman A, Krapf J — all affiliated with Centers for Vulvovaginal Disorders (Washington D.C. and Tampa, FL) Funding/COI: Funded entirely by Centers for Vulvovaginal Disorders, the same institution that conducted the study. Authors declare no conflicts of interest.

Summary

This cross-sectional study from a specialty vulvovaginal clinic screened gynecology patients for joint hypermobility using the 5-point Hypermobility Questionnaire, confirmed hEDS diagnoses in 44 patients, and found that 100% of them had provoked vestibulodynia. Among a broader group of 79 patients with vestibulodynia (including those with hypermobile features not fully meeting hEDS criteria), 31.6% showed signs of hypertonic pelvic floor dysfunction and 68.4% had diffuse vestibular pain suggesting inflammatory, neuroproliferative, or hormonal causes. Patients completed the Female Sexual Function Index (FSFI) and Female Sexual Distress Scale (F-SDS), and results were analyzed with descriptive statistics only.

Claims

• 44 of 44 hEDS patients (100%) had provoked vulvodynia confined to the vestibule (vestibulodynia)
• 31.6% (25/79) of vestibulodynia patients had posterior vestibular allodynia only, consistent with hypertonic pelvic floor dysfunction as the sole cause
• 68.4% (54/79) had diffuse vestibular pain, suggesting inflammatory, neuroproliferative, or hormonal pathology
• Similar patterns were observed in patients with hypermobile features who did not fully meet hEDS criteria (HSD)

Study Quality

This is a single-center, cross-sectional, descriptive study with no control group and a small sample (n=44 for the hEDS cohort). The methods rely on chart review plus validated questionnaires (FSFI, F-SDS) and the 5-point Hypermobility Questionnaire for screening. No inferential statistics are reported — the findings are frequencies only, which limits what can be concluded beyond describing who showed up at this particular clinic.

The 100% prevalence figure is the headline but is entirely explained by study design: patients were recruited at a specialty vulvovaginal disorders clinic, meaning they came specifically because of genito-pelvic pain. Screening that population for hEDS and then finding all hEDS patients had vestibulodynia tells you nothing about prevalence of vestibulodynia in the broader hEDS population — it tells you about the overlap in this clinic's patient panel. The study's stated aim was explicitly to characterize diagnoses among patients with hEDS/HSD with genito-pelvic pain, which makes the 100% finding circular.

Red Flags

• Severe selection bias: All patients were presenting to a vulvovaginal pain clinic. Finding that pelvic pain patients have pelvic pain is not a generalizable prevalence estimate.
• No control group: No hEDS patients without genito-pelvic pain, no non-hEDS patients with vestibulodynia for comparison.
• Institutional funding: Study funded entirely by the Centers for Vulvovaginal Disorders — the same private practice that treats these conditions and employs all authors.
• Descriptive statistics only: No regression, no confidence intervals, no p-values. Cannot assess whether associations are meaningful or chance.
• Small n: 44 patients with confirmed hEDS, 79 total with vestibulodynia. Subgroup percentages (31.6% vs 68.4%) carry wide uncertainty not quantified anywhere.
• Full text data anomaly: The full text sections provided with this paper appear to contain content from a separate Welsh epidemiological study (SAIL databank, 6,021 patients, 1990–2017). This likely reflects a data aggregation error in the source feed and does not reflect on the study itself, but it made independent verification of methods impossible.

Strengths

• Uses validated, standardized questionnaires (FSFI, F-SDS) rather than ad hoc measures
• IRB-approved (BRANY, November 2023)
• Represents a clinically underexplored intersection — connective tissue disorders and vulvovaginal pain — with essentially no prior dedicated literature
• Distinguishes vestibulodynia subtypes (posterior allodynia vs. diffuse pain), which has treatment implications that future studies could build on

Verdict

The 100% prevalence claim will travel further than it should. This paper is a descriptive case series from a specialty clinic, not an epidemiological study of hEDS patients at large — and it is very clear about that in its methods even if the headline number obscures it. What it contributes is a structured characterization of how vestibulodynia presents within an hEDS-positive clinic population, with a useful subtype breakdown (hypertonic pelvic floor vs. diffuse inflammation). That's a reasonable foundation for hypothesis generation. As evidence that hEDS causes or even predicts vestibulodynia in the general population, it is essentially worthless. File this as an interesting clinical observation from a highly selected sample, requiring a prospective, population-based study with controls before any prevalence claim can be taken seriously.