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Vulva

Anatomy and Physiology · NLM MeSH · updated 2026-10-31 · version 1

Citations verified against PubMedNot yet clinician-reviewed10 referencesApproximately 5 min read

The external genitalia of the female.

Table of Contents

1. Definition2. Research landscape3. Reading the evidence4. Open-access studies5. Key reviews6. References7. About this article

Definition and research guide

This page combines a MeSH definition, publication statistics and selected research abstracts. It is a starting point for reading the literature, not a medical textbook or a systematic evidence review.

Content available: 4 complete abstracts (991 words), 10 references. Full article text is not stored or reproduced here; follow the PMID, DOI or PMC links to read the original sources and their access terms.

Definition

The external genitalia of the female. It includes the clitoris, the labia, the vestibule, and its glands.

Definition: NLM Medical Subject Headings (MeSH) scope note (Public domain (U.S. National Library of Medicine); attribution requested). View the MeSH record.

Also known as: Vulvas.

Where it fits in the MeSH classification

Broader topics
Genitalia, Female
Narrower topics
Bartholin's Glands; Clitoris

Related concepts

  • Clitoris

Research landscape

PubMed indexes 8,826 records tagged with the MeSH heading “Vulva” (counts retrieved 2026-10-31). 1,307 of them (14.8%) were published from 2020 onward, and the busiest period so far is through 1999 with 4,289 records.

Reviews account for 890 records (10.1%) and meta-analyses for 23. Randomized controlled trials number 151 (1.7%) as a share of all records on the topic. Randomized trials make up only a small share of this literature, so much of what is known comes from laboratory, observational or descriptive work.

PubMed records by publication periodthrough 1999: 4,289 records; 2000-2009: 1,337 records; 2010-2019: 1,893 records; 2020 onward: 1,307 records4,289through 19991,3372000-20091,8932010-20191,3072020 onward
Records in PubMed indexed with this heading, by publication period. Real counts from NCBI E-utilities; the final period covers only part of the current year. Volume reflects how much has been published, not how strong the evidence is.
Show the data
PeriodRecords
through 19994,289
2000-20091,337
2010-20191,893
2020 onward1,307
Share of records by publication typeReviews: 10.1 percent; Meta-analyses: 0.3 percent; Randomized controlled trials: 1.7 percentReviews10.1% (890)Meta-analyses0.3% (23)Randomized controlled trials1.7% (151)
Share of all PubMed records on this heading that carry each publication type. Types overlap with other records, so the shares do not sum to 100%.
Publication-type chart data
Publication types among 8,826 PubMed records
TypeRecordsShare
Reviews89010.1%
Meta-analyses230.3%
Randomized controlled trials1511.7%

Method: PubMed query "Vulva"[MeSH Terms] with publication-type and date filters, retrieved 2026-10-31.

Reading the evidence in anatomy and physiology

Anatomy describes how body structures are built and physiology describes how they normally work, so most findings here are descriptive or mechanistic rather than evidence about treatment. Much of what is known comes from dissection, imaging, tissue studies and experiments in animals, and measurements in healthy volunteers can differ from those in people with disease or at different ages. Normal ranges vary between individuals and populations. Check whether a result was measured in people or in another species, the age and health of the participants, and the method used.

Evidence from open-access studies

These open-access studies come from PubMed’s best-match results for this heading (papers whose main topic it is), ranked here by citation count, with one recent addition. Each abstract is reproduced in full under its recorded open licence so that you can read the authors’ own words. They illustrate the literature; they are not a systematic summary of it. Citation counts measure attention, not reliability or clinical benefit.

Study comparison — selected abstracts, not a systematic review
Study / authorsYearSource label / designEurope PMC citationsLicence / source
Vulvar and vaginal atrophy in four European countries: evidence from the European REVIVE Survey
Nappi RE, Palacios S, Panay N, Particco M, Krychman ML
2016Research article
Design not recorded in structured metadata
137cc by
PMID 26581580 · DOI · PMC4819825
Bias and evolution of the mutationally accessible phenotypic space in a developmental system
Braendle C, Baer CF, Félix MA
2010Research article
Design not recorded in structured metadata
63cc by
PMID 20300655 · DOI · PMC2837400
Overall Safety of Ospemifene in Postmenopausal Women from Placebo-Controlled Phase 2 and 3 Trials
Simon JA, Altomare C, Cort S, Jiang W, Pinkerton JV
2018Randomized controlled trial
Design not recorded in structured metadata
44cc by
PMID 29064335 · DOI · PMC5771532
Under the hood: vulvar anatomy and pathology with a focus on MRI
Golden E, Cooke S, Butler E, Gregg L, Gomez E
2026Review article
Design not recorded in structured metadata
1cc by
PMID 40924132 · DOI · PMC13013239

Vulvar and vaginal atrophy in four European countries: evidence from the European REVIVE Survey [1]

Research article Nappi RE, Palacios S, Panay N, Particco M, Krychman ML · · 2016 · cited 137 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
ObjectivesThe aim of the European REVIVE survey was to achieve a better understanding of vulvovaginal atrophy (VVA), a chronic and progressive condition after menopause.
Closing excerpt
The discussion of symptoms with HCPs seems the most critical factor for diagnosis and treatment of VVA.
Interpretation limits
Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (312 words)

ObjectivesThe aim of the European REVIVE survey was to achieve a better understanding of vulvovaginal atrophy (VVA), a chronic and progressive condition after menopause. We investigated perceptions, experiences and needs in terms of sexual and vaginal health in a sample of European postmenopausal women.MethodsAn online internet based survey was conducted in Italy, Germany, Spain and the UK with a total surveyed sample of 3768 postmenopausal women (age: 45-75 years).ResultsThe most common VVA symptom was vaginal dryness (70%). VVA has a significant impact on the ability to be intimate (62%), to enjoy sexual intercourse (72%) and to feel sexual spontaneity (66%). Postmenopausal women with VVA are sexually active (51%), but their sexual drive is reduced. Health-care professionals (HCPs) have discussed VVA with postmenopausal women (62%), but they initiated the conversation only in 10% of the cases. The most common treatments for VVA are over-the-counter, non-hormonal, local vaginal products. Thirty-two per cent of postmenopausal women were naïve to any kind of treatment, whereas discussion with the HCP was relevant to be on current treatment (60% of postmenopausal women that discussed VVA with a HCP vs. 23% who did not). The top reasons for poor compliance with vaginal treatments were: not bothersome enough symptoms (18%); vaginal changes not therapeutically reversed (18%); relief from VVA symptoms (17%). Approximately 45% were satisfied with treatment. The most frequent disliked aspects of treatment were the route of administration or the messiness. The fear of hormones was common in postmenopausal women using vaginal prescription products.ConclusionsThe European REVIVE survey confirmed that VVA symptoms are frequent in postmenopausal women and demonstrates a significant impact on quality of life and sexual life. However, the condition is still under-diagnosed and under-treated, with a high rate of dissatisfaction for actual available treatments in the four European countries surveyed. The discussion of symptoms with HCPs seems the most critical factor for diagnosis and treatment of VVA.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 26581580 · DOI · PMC4819825

Bias and evolution of the mutationally accessible phenotypic space in a developmental system [2]

Research article Braendle C, Baer CF, Félix MA · · 2010 · cited 63 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
Genetic and developmental architecture may bias the mutationally available phenotypic spectrum.
Closing excerpt
This study provides an empirical assessment of developmental bias and the evolution of mutationally accessible phenotypes and supports the notion that such bias may influence the directions of evolutionary change.
Interpretation limits
Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (300 words)

Genetic and developmental architecture may bias the mutationally available phenotypic spectrum. Although such asymmetries in the introduction of variation may influence possible evolutionary trajectories, we lack quantitative characterization of biases in mutationally inducible phenotypic variation, their genotype-dependence, and their underlying molecular and developmental causes. Here we quantify the mutationally accessible phenotypic spectrum of the vulval developmental system using mutation accumulation (MA) lines derived from four wild isolates of the nematodes Caenorhabditis elegans and C. briggsae. The results confirm that on average, spontaneous mutations degrade developmental precision, with MA lines showing a low, yet consistently increased, proportion of developmental defects and variants. This result indicates strong purifying selection acting to maintain an invariant vulval phenotype. Both developmental system and genotype significantly bias the spectrum of mutationally inducible phenotypic variants. First, irrespective of genotype, there is a developmental bias, such that certain phenotypic variants are commonly induced by MA, while others are very rarely or never induced. Second, we found that both the degree and spectrum of mutationally accessible phenotypic variation are genotype-dependent. Overall, C. briggsae MA lines exhibited a two-fold higher decline in precision than the C. elegans MA lines. Moreover, the propensity to generate specific developmental variants depended on the genetic background. We show that such genotype-specific developmental biases are likely due to cryptic quantitative variation in activities of underlying molecular cascades. This analysis allowed us to identify the mutationally most sensitive elements of the vulval developmental system, which may indicate axes of potential evolutionary variation. Consistent with this scenario, we found that evolutionary trends in the vulval system concern the phenotypic characters that are most easily affected by mutation. This study provides an empirical assessment of developmental bias and the evolution of mutationally accessible phenotypes and supports the notion that such bias may influence the directions of evolutionary change.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 20300655 · DOI · PMC2837400

Overall Safety of Ospemifene in Postmenopausal Women from Placebo-Controlled Phase 2 and 3 Trials [3]

Randomized controlled trial Simon JA, Altomare C, Cort S, Jiang W, Pinkerton JV · · 2018 · cited 44 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
ObjectiveTo evaluate the safety of daily oral ospemifene 60 mg, estrogen agonist/antagonist, used to treat moderate-to-severe dyspareunia due to postmenopausal vulvovaginal atrophy, which is part of genitourinary syndrome of menopause.
Closing excerpt
ConclusionNo unexpected safety signals were reported, and discontinuation due to TEAEs was low, with use of ospemifene 60 mg versus placebo in six phase 2 and 3 trials, suggesting a lack of detrimental effects on the breast, bone, and cardiovascular health of postmenopausal women when ospemifene is used to effectively treat moderate-to-severe postmenopausal dyspareunia.
Interpretation limits
Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (251 words)

ObjectiveTo evaluate the safety of daily oral ospemifene 60 mg, estrogen agonist/antagonist, used to treat moderate-to-severe dyspareunia due to postmenopausal vulvovaginal atrophy, which is part of genitourinary syndrome of menopause.MethodsPost hoc analysis of safety data (treatment-emergent adverse events [TEAEs]) pooled from six phase 2 and 3 randomized, double-blind, multicenter placebo-controlled studies, evaluating the effects of ospemifene 60 mg on the breast, cardiovascular system, and bone in postmenopausal women.ResultsAt least one TEAE was reported by 67.6% (840/1242) and 54.1% (518/958) of women taking ospemifene 60 mg and placebo, respectively. Most TEAEs were mild or moderate and occurred within 4 to 12 weeks. The most commonly reported TEAEs with ospemifene were hot flush (8.5% vs. 3.3% for placebo) and urinary tract infection (6.5% vs. 4.8%). Discontinuation due to TEAEs was 7.6% with ospemifene and 3.8% with placebo. Most women discontinued treatment due to adverse events (AEs): hot flushes, muscle spasms, headache, and vaginal discharge. Serious AEs occurred infrequently (ospemifene, 2.6%; placebo, 1.8%); most were not considered related to treatment. Breast cancer and other breast-related TEAE incidences were comparable between ospemifene (2.5%) and placebo (2.2%), and cardiovascular TEAE incidence, including deep vein thrombosis, was low with ospemifene (0.3%) and placebo (0.1%).ConclusionNo unexpected safety signals were reported, and discontinuation due to TEAEs was low, with use of ospemifene 60 mg versus placebo in six phase 2 and 3 trials, suggesting a lack of detrimental effects on the breast, bone, and cardiovascular health of postmenopausal women when ospemifene is used to effectively treat moderate-to-severe postmenopausal dyspareunia.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 29064335 · DOI · PMC5771532

Under the hood: vulvar anatomy and pathology with a focus on MRI [4]

Review article Golden E, Cooke S, Butler E, Gregg L, Gomez E · · 2026 · cited 1 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
Vulvar anatomy and pathology can be a challenging subject to master, especially given the paucity of resources available on the subject.
Closing excerpt
This discussion will be organized by anatomic structures to promote a thorough understanding of the pathologies which may occur in each anatomic subregion region and facilitate future referencing.
Interpretation limits
Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (128 words)

Vulvar anatomy and pathology can be a challenging subject to master, especially given the paucity of resources available on the subject. This review provides an overview of normal anatomy and imaging appearance of the vulva, including the mons pubis, labia majora, labia minora, clitoris, clitoral hood, external urethral meatus, vestibule and vaginal introitus, the Bartholin (greater vestibular) glands and the Skene (lesser vestibular or paraurethral) glands. We will also review the imaging appearance of various benign and malignant pathologies that affect these structures, including congenital adrenal hyperplasia, vulvar cancers, benign cysts, and urethral diverticula, with an emphasis on MR imaging. This discussion will be organized by anatomic structures to promote a thorough understanding of the pathologies which may occur in each anatomic subregion region and facilitate future referencing.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 40924132 · DOI · PMC13013239

Key reviews and meta-analyses

The most cited review-type papers among PubMed’s best-match results for this heading, listed with bibliographic details only. Follow the links for the full text and access terms.

  • Research article Genitourinary syndrome of menopause: new terminology for vulvovaginal atrophy from the International Society for the Study of Women's Sexual Health and the North American Menopause Society [5]
    Portman DJ, Gass ML, Vulvovaginal Atrophy Terminology Consensus Conference Panel · Menopause · 2014 · cited 425 times (Europe PMC)
  • Research article Lifetime changes in the vulva and vagina [6]
    Farage M, Maibach H · Arch Gynecol Obstet · 2006 · cited 195 times (Europe PMC)
  • Research article Mammary-like glands of the vulva and their disorders [7]
    van der Putte SC · Int J Gynecol Pathol · 1994 · cited 164 times (Europe PMC)
  • Research article Anatomy of the clitoris [8]
    O'Connell HE, Sanjeevan KV, Hutson JM · J Urol · 2005 · cited 147 times (Europe PMC)
  • Research article Squamous precursor lesions of the vulva: current classification and diagnostic challenges [9]
    Hoang LN, Park KJ, Soslow RA, Murali R · Pathology · 2016 · cited 128 times (Europe PMC)
  • Research article The SynMuv genes of Caenorhabditis elegans in vulval development and beyond [10]
    Fay DS, Yochem J · Dev Biol · 2007 · cited 87 times (Europe PMC)

References

  1. Nappi RE, Palacios S, Panay N, Particco M, Krychman ML. Vulvar and vaginal atrophy in four European countries: evidence from the European REVIVE Survey. . 2016. PMID 26581580 · DOI · PMC4819825
  2. Braendle C, Baer CF, Félix MA. Bias and evolution of the mutationally accessible phenotypic space in a developmental system. . 2010. PMID 20300655 · DOI · PMC2837400
  3. Simon JA, Altomare C, Cort S, Jiang W, Pinkerton JV. Overall Safety of Ospemifene in Postmenopausal Women from Placebo-Controlled Phase 2 and 3 Trials. . 2018. PMID 29064335 · DOI · PMC5771532
  4. Golden E, Cooke S, Butler E, Gregg L, Gomez E. Under the hood: vulvar anatomy and pathology with a focus on MRI. . 2026. PMID 40924132 · DOI · PMC13013239
  5. Portman DJ, Gass ML, Vulvovaginal Atrophy Terminology Consensus Conference Panel. Genitourinary syndrome of menopause: new terminology for vulvovaginal atrophy from the International Society for the Study of Women's Sexual Health and the North American Menopause Society. Menopause. 2014. PMID 25160739 · DOI
  6. Farage M, Maibach H. Lifetime changes in the vulva and vagina. Arch Gynecol Obstet. 2006. PMID 16208476 · DOI
  7. van der Putte SC. Mammary-like glands of the vulva and their disorders. Int J Gynecol Pathol. 1994. PMID 8005737 · DOI
  8. O'Connell HE, Sanjeevan KV, Hutson JM. Anatomy of the clitoris. J Urol. 2005. PMID 16145367 · DOI
  9. Hoang LN, Park KJ, Soslow RA, Murali R. Squamous precursor lesions of the vulva: current classification and diagnostic challenges. Pathology. 2016. PMID 27113549 · DOI · PMC5518939
  10. Fay DS, Yochem J. The SynMuv genes of Caenorhabditis elegans in vulval development and beyond. Dev Biol. 2007. PMID 17434473 · DOI · PMC1955466

About this article

Sources
NLM Medical Subject Headings (definition, synonyms); NCBI PubMed (counts, identifiers); Europe PMC (open-access abstracts and citation counts).
Verification
Every reference was resolved against PubMed on 2026-10-31; title, year and DOI matched.
Review state
automated source verified; no human expert review has been recorded yet.
Version
1, last updated 2026-10-31.

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At a glance

8,826
PubMed records on this heading
15%
published since 2020
890
review articles
151
randomized trials
10
verified references below

Counts come from PubMed on 2026-10-31; they show how much has been written, not how strong the evidence is.

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