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Pelvis

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

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

The space or compartment surrounded by the pelvic girdle (bony pelvis).

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 (925 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 space or compartment surrounded by the pelvic girdle (bony pelvis). It is subdivided into the greater pelvis and lesser pelvis. The pelvic girdle is formed by the pelvic bones and sacrum.

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: Pelvic Region; Region, Pelvic.

Where it fits in the MeSH classification

Broader topics
Torso
Narrower topics
Lesser Pelvis; Pelvic Floor
See also
Pelvic Inflammatory Disease; Pelvic Exenteration; Pelvimetry; Pelvic Infection

Related concepts

  • Lesser Pelvis
  • Pelvic Bones
  • Sacrum

Research landscape

PubMed indexes 35,789 records tagged with the MeSH heading “Pelvis” (counts retrieved 2026-10-31). 7,867 of them (22.0%) were published from 2020 onward, and the busiest period so far is through 1999 with 12,477 records.

Reviews account for 3,948 records (11.0%) and meta-analyses for 372. Randomized controlled trials number 1,281 (3.6%) as a share of all records on the topic.

PubMed records by publication periodthrough 1999: 12,477 records; 2000-2009: 5,808 records; 2010-2019: 9,637 records; 2020 onward: 7,867 records12,477through 19995,8082000-20099,6372010-20197,8672020 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 199912,477
2000-20095,808
2010-20199,637
2020 onward7,867
Share of records by publication typeReviews: 11.0 percent; Meta-analyses: 1.0 percent; Randomized controlled trials: 3.6 percentReviews11.0% (3,948)Meta-analyses1.0% (372)Randomized controlled trials3.6% (1,281)
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 35,789 PubMed records
TypeRecordsShare
Reviews3,94811.0%
Meta-analyses3721.0%
Randomized controlled trials1,2813.6%

Method: PubMed query "Pelvis"[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
Pressure-Mediated Biofeedback With Pelvic Floor Muscle Training for Urinary Incontinence: A Randomized Clinical Trial
Wang X, Qiu J, Li D, Wang Z, Yang Y, Fan G, et al.
2024Randomized controlled trial
Design not recorded in structured metadata
20cc by
PMID 39499517 · DOI · PMC11539013
Up for the tackle? The pelvic floor and rugby. A review
Donnelly GM, Bø K, Forner LB, Rankin A, Moore IS
2024Review article
Design not recorded in structured metadata
16cc by
PMID 39639650 · DOI · PMC11621375
Artificial intelligence in abdominal and pelvic ultrasound imaging: current applications
Cai L, Pfob A
2025Review article
Design not recorded in structured metadata
12cc by
PMID 39487919 · DOI · PMC11947003
Emphysematous conditions of the abdomen and pelvis: pearls and pitfalls
Panda A, Kayali M, Aswani Y
2026Review article
Design not recorded in structured metadata
6cc by
PMID 40576665 · DOI · PMC12830503

Pressure-Mediated Biofeedback With Pelvic Floor Muscle Training for Urinary Incontinence: A Randomized Clinical Trial [1]

Randomized controlled trial Wang X, Qiu J, Li D, Wang Z, Yang Y, Fan G, et al. · · 2024 · cited 20 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
ImportanceSupervised pelvic floor muscle training (PFMT) has been recommended as the first-line treatment for women with stress urinary incontinence (SUI), but more evidence on whether adjunctive methods would provide additional benefits is needed.
Closing excerpt
gov Identifier: NCT05115864.
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 (361 words)

ImportanceSupervised pelvic floor muscle training (PFMT) has been recommended as the first-line treatment for women with stress urinary incontinence (SUI), but more evidence on whether adjunctive methods would provide additional benefits is needed.ObjectiveTo compare the efficacy of PFMT with or without a home-based pressure-mediated biofeedback (BF) device.Design, setting, and participantsThis multicenter assessor-blinded randomized clinical trial was conducted in the obstetric clinics of 5 participating tertiary hospitals in China. Participants included eligible women with new-onset postpartum SUI who were enrolled from March 28, 2022, to October 13, 2023.InterventionAll participants received 3 months of supervised PFMT and were randomized to either the intervention (PFMT with a home-based pressure-mediated BF device) or the control group (home-based PFMT).Main outcome and measuresThe primary outcome was the severity of urinary incontinence evaluated by the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form after 3 months of supervised PFMT. The secondary outcomes included the cure and improvement rates, PFM strength, quality of life, self-efficacy, and adherence.ResultsA total of 452 participants (median age, 34 [IQR, 31-36] years; median body mass index [calculated as the weight in kilograms divided by the height in square meters], 23.71 [IQR, 21.37-25.97]; median time since delivery, 50 [IQR, 43-61] days) were included in the analysis, with 223 in the intervention group and 229 in the control group. Compared with the control group, the intervention group achieved a significantly greater reduction in incontinence severity (median, 3.00 [IQR, 1.00-6.00] vs 2.00 [IQR, 0-4.00] points; z = -3.05; P = .002), significantly increased cure rate (45 of 223 [20.2%] vs 20 of 229 [8.7%]; z = 12.02; P = .001) and improvement (132 of 223 [59.2%] vs 102 of 229 [44.5%]; z = 9.71; P = .002), significantly greater pelvic floor muscle strength (median, 26.00 [IQR, 17.00-38.00] vs 21.00 [IQR, 13.50-33.50] cm H2O; z = -2.28; P = .02), and a significantly greater correlation between subjective and objective adherence (r = 0.825 vs r = 0.627).Conclusion and relevanceIn this randomized clinical trial, the efficacy of pressure-mediated BF combined with PFMT was superior to that of PFMT alone. These findings support the use of pressure-mediated BF devices for improving treatment outcomes for patients with SUI.Trial registrationClinicalTrials.gov Identifier: NCT05115864.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 39499517 · DOI · PMC11539013

Up for the tackle? The pelvic floor and rugby. A review [2]

Review article Donnelly GM, Bø K, Forner LB, Rankin A, Moore IS · · 2024 · cited 16 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
The pelvic floor and its associated disorders are a unique and often overlooked aspect of women's rugby.
Closing excerpt
Finally, surveillance and research focusing specifically on rugby players and pelvic floor function are needed.
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 (208 words)

The pelvic floor and its associated disorders are a unique and often overlooked aspect of women's rugby. This review discusses relevant biopsychosocial considerations specific to the pelvic floor and rugby. Pelvic floor disorders can present at any time across the female lifespan but are more prevalent during pregnancy and postpartum. This is due to the substantial physiological and anatomical changes experienced during pregnancy and vaginal childbirth. Consequently, pelvic floor disorders can impact a player's ability to perform, maintain engagement with, or return to, rugby due to symptoms. Players need to be informed, supported, and guided through focused pelvic floor muscle training to condition the muscles and 'ready' them for the varied demands of rugby. Health and fitness professionals should understand the risk of pelvic floor disorders across the female lifespan and screen players for symptoms when supporting them to maintain or return to rugby. Rugby players who are symptomatic of pelvic floor disorders should be signposted to specialist services and/or resources to manage their symptoms. Once engaging in rugby training, ongoing evaluation of player load tolerance and implementation of individualized strategies to support managing rugby-related loads to the pelvic floor should be considered. Finally, surveillance and research focusing specifically on rugby players and pelvic floor function are needed.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 39639650 · DOI · PMC11621375

Artificial intelligence in abdominal and pelvic ultrasound imaging: current applications [3]

Review article Cai L, Pfob A · · 2025 · cited 12 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
BackgroundIn recent years, the integration of artificial intelligence (AI) techniques into medical imaging has shown great potential to transform the diagnostic process.
Closing excerpt
However, the risk of bias remains high because very few of these applications have been prospectively validated (in multi-center studies) or have received FDA clearance.
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 (224 words)

BackgroundIn recent years, the integration of artificial intelligence (AI) techniques into medical imaging has shown great potential to transform the diagnostic process. This review aims to provide a comprehensive overview of current state-of-the-art applications for AI in abdominal and pelvic ultrasound imaging.MethodsWe searched the PubMed, FDA, and ClinicalTrials.gov databases for applications of AI in abdominal and pelvic ultrasound imaging.ResultsA total of 128 titles were identified from the database search and were eligible for screening. After screening, 57 manuscripts were included in the final review. The main anatomical applications included multi-organ detection (n = 16, 28%), gynecology (n = 15, 26%), hepatobiliary system (n = 13, 23%), and musculoskeletal (n = 8, 14%). The main methodological applications included deep learning (n = 37, 65%), machine learning (n = 13, 23%), natural language processing (n = 5, 9%), and robots (n = 2, 4%). The majority of the studies were single-center (n = 43, 75%) and retrospective (n = 56, 98%). We identified 17 FDA approved AI ultrasound devices, with only a few being specifically used for abdominal/pelvic imaging (infertility monitoring and follicle development).ConclusionThe application of AI in abdominal/pelvic ultrasound shows promising early results for disease diagnosis, monitoring, and report refinement. However, the risk of bias remains high because very few of these applications have been prospectively validated (in multi-center studies) or have received FDA clearance.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 39487919 · DOI · PMC11947003

Emphysematous conditions of the abdomen and pelvis: pearls and pitfalls [4]

Review article Panda A, Kayali M, Aswani Y · · 2026 · cited 6 times (Europe PMC)

Abstract reading summary — source excerpts
Opening excerpt
Emphysematous conditions of the abdomen and pelvis are uncommon but are potentially lethal.
Closing excerpt
For each of these emphysematous pathologies, we also discuss various gas-containing imaging mimics, as the management of these mimics differs from true emphysematous pathologies.
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 (132 words)

Emphysematous conditions of the abdomen and pelvis are uncommon but are potentially lethal. A majority of these share common predisposing risk factors such as uncontrolled diabetes mellitus, immunocompromised states, chronic kidney disease, hepatic cirrhosis, malignancy, chemotherapy, and polytrauma. Computed tomography is the most utilized modality for the evaluation of emphysematous conditions in an emergency scenario. It is equally important to recognize mimics of the lethal emphysematous pathologies to avoid misdiagnosis. Gas-containing imaging mimics occur due to recent interventions, instrumentation, and fistulae. This review discusses the pertinent clinical and imaging features of emphysematous conditions of the abdomen and pelvis that can help confirm the diagnosis and guide patient management. For each of these emphysematous pathologies, we also discuss various gas-containing imaging mimics, as the management of these mimics differs from true emphysematous pathologies.

Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 40576665 · DOI · PMC12830503

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 Burden of adhesions in abdominal and pelvic surgery: systematic review and met-analysis [5]
    ten Broek RP, Issa Y, van Santbrink EJ, Bouvy ND, Kruitwagen RF, Jeekel J, et al. · BMJ · 2013 · cited 451 times (Europe PMC)
  • Research article Pelvic floor muscle training versus no treatment, or inactive control treatments, for urinary incontinence in women [6]
    Dumoulin C, Cacciari LP, Hay-Smith EJC · Cochrane Database Syst Rev · 2018 · cited 317 times (Europe PMC)
  • Research article Comparing lumbo-pelvic kinematics in people with and without back pain: a systematic review and meta-analysis [7]
    Laird RA, Gilbert J, Kent P, Keating JL · BMC Musculoskelet Disord · 2014 · cited 290 times (Europe PMC)
  • Research article Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women [8]
    Woodley SJ, Lawrenson P, Boyle R, Cody JD, Mørkved S, Kernohan A, et al. · Cochrane Database Syst Rev · 2020 · cited 197 times (Europe PMC)
  • Research article Effects of exercise on diastasis of the rectus abdominis muscle in the antenatal and postnatal periods: a systematic review [9]
    Benjamin DR, van de Water AT, Peiris CL · Physiotherapy · 2014 · cited 143 times (Europe PMC)
  • Research article Is Physical Activity Good or Bad for the Female Pelvic Floor? A Narrative Review [10]
    Bø K, Nygaard IE · Sports Med · 2020 · cited 138 times (Europe PMC)

References

  1. Wang X, Qiu J, Li D, Wang Z, Yang Y, Fan G, et al.. Pressure-Mediated Biofeedback With Pelvic Floor Muscle Training for Urinary Incontinence: A Randomized Clinical Trial. . 2024. PMID 39499517 · DOI · PMC11539013
  2. Donnelly GM, Bø K, Forner LB, Rankin A, Moore IS. Up for the tackle? The pelvic floor and rugby. A review. . 2024. PMID 39639650 · DOI · PMC11621375
  3. Cai L, Pfob A. Artificial intelligence in abdominal and pelvic ultrasound imaging: current applications. . 2025. PMID 39487919 · DOI · PMC11947003
  4. Panda A, Kayali M, Aswani Y. Emphysematous conditions of the abdomen and pelvis: pearls and pitfalls. . 2026. PMID 40576665 · DOI · PMC12830503
  5. ten Broek RP, Issa Y, van Santbrink EJ, Bouvy ND, Kruitwagen RF, Jeekel J, et al.. Burden of adhesions in abdominal and pelvic surgery: systematic review and met-analysis. BMJ. 2013. PMID 24092941 · DOI · PMC3789584
  6. Dumoulin C, Cacciari LP, Hay-Smith EJC. Pelvic floor muscle training versus no treatment, or inactive control treatments, for urinary incontinence in women. Cochrane Database Syst Rev. 2018. PMID 30288727 · DOI · PMC6516955
  7. Laird RA, Gilbert J, Kent P, Keating JL. Comparing lumbo-pelvic kinematics in people with and without back pain: a systematic review and meta-analysis. BMC Musculoskelet Disord. 2014. PMID 25012528 · DOI · PMC4096432
  8. Woodley SJ, Lawrenson P, Boyle R, Cody JD, Mørkved S, Kernohan A, et al.. Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women. Cochrane Database Syst Rev. 2020. PMID 32378735 · DOI · PMC7203602
  9. Benjamin DR, van de Water AT, Peiris CL. Effects of exercise on diastasis of the rectus abdominis muscle in the antenatal and postnatal periods: a systematic review. Physiotherapy. 2014. PMID 24268942 · DOI
  10. Bø K, Nygaard IE. Is Physical Activity Good or Bad for the Female Pelvic Floor? A Narrative Review. Sports Med. 2020. PMID 31820378 · DOI · PMC7018791

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

35,789
PubMed records on this heading
22%
published since 2020
3,948
review articles
1,281
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.

Related topics See all →

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  • CalcaneusAnatomy and Physiology
  • ClavicleAnatomy and Physiology

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