Observational study finds women report higher pain levels than men globally — Evidence Review
Published in Nature Medicine, by researchers from University of Edinburgh, University of Oxford
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Table of Contents
Women worldwide experience more pain than men across all body sites, according to a major new study; this gender pain gap is supported by most previous research, though some laboratory studies have found less consistent differences. Related literature generally agrees that women report higher pain intensity and prevalence for many conditions, with biological, psychological, and social factors all contributing to these disparities. See more details in the original study source.
- Multiple large-scale reviews and meta-analyses have consistently found that women experience greater frequency, severity, and duration of pain compared to men, especially for chronic and musculoskeletal conditions 1 2 3 8 10 12 13.
- The new study's global, lifespan-spanning approach addresses previous limitations by including populations with limited healthcare access and using self-reported pain rather than diagnoses, aligning with calls from prior research for more inclusive and ecologically valid methodologies 4 5.
- Some laboratory studies indicate mixed or less consistent sex differences in experimental pain sensitivity, suggesting the clinical reality of the gender pain gap may be influenced by factors not fully captured in controlled settings 4 5.
Study Overview and Key Findings
This study is one of the most comprehensive efforts to map pain prevalence and intensity across age, sex, and geography, analyzing self-reported pain data from over six million people in 118 countries. Its findings are timely given increasing concern about the gender pain gap and its implications for health equity and clinical practice. By examining pain trajectories across the lifespan and multiple body sites, the study provides a nuanced understanding of when and where pain burdens develop and who is most affected.
| Property | Value |
|---|---|
| Organization | University of Edinburgh, University of Oxford |
| Journal Name | Nature Medicine |
| Population | Global population across various age groups |
| Sample Size | more than 6 million people |
| Methods | Observational Study |
| Outcome | Self-reported pain across various bodily sites |
| Results | Women reported higher pain levels than men across all sites. |
Literature Review: Related Studies
To contextualize these findings, we searched the Consensus research database, which aggregates over 200 million scientific papers. The following search queries were used to identify relevant literature:
- women pain levels comparison men
- gender differences chronic pain studies
- global pain prevalence women men
Below, we summarize key topics and findings from related studies:
| Topic | Key Findings |
|---|---|
| Why do women experience more pain than men? | - Women report greater pain frequency, severity, and duration in clinical settings, with increased risk for pain-related disability 1 2 3 8 10 11 12 13. - Biological, hormonal, genetic, and psychosocial factors contribute to sex differences in pain 3 5 7 8. |
| How consistent are sex differences in pain across different conditions and modalities? | - Sex differences are strongest for musculoskeletal pain, migraine, and some chronic conditions, while laboratory pain studies show more mixed results 1 2 4 5 8 10 11 12 13. - Some studies find little or no sex difference in certain experimental pain modalities 4 5. |
| What role does healthcare and societal bias play in the gender pain gap? | - Women’s pain is more likely to be dismissed, underdiagnosed, or undertreated due to gender bias and stereotypes in healthcare 1 6. - Awareness and mitigation of gender bias is crucial for equitable pain management 6 8. |
| How does pain prevalence vary globally and with age? | - Pain prevalence increases with age, peaking in mid-to-late adulthood, and is higher in women worldwide; rates are also higher in lower-income regions 9 10 12 13. - The burden of pain is projected to rise with population ageing and growth 13. |
Why do women experience more pain than men?
Numerous studies have established that women, on average, experience higher pain prevalence, intensity, and duration than men, especially for chronic and musculoskeletal conditions. The new global study’s findings are in strong agreement with these prior clinical and epidemiological studies, which highlight a multifactorial etiology for the gender pain gap involving biological, hormonal, genetic, and psychosocial factors 1 2 3 8 10 11 12 13.
- Systematic reviews show women are more likely to report recurrent and disabling pain, including headaches, migraines, and musculoskeletal pain 1 2 3 8 10 11 12 13.
- Biological explanations include differences in sex hormones, genetics, and pain processing pathways 3 7 8.
- Psychosocial factors, such as coping strategies and gender roles, also modulate pain experiences 3 5 8.
- The new study’s observation of higher pain rates among women globally and across body sites expands on previous research limited to specific populations or pain types 1 2 3 8 10 11 12 13.
How consistent are sex differences in pain across different conditions and modalities?
While clinical data consistently show higher pain prevalence and burden among women, laboratory experiments on pain sensitivity yield more mixed results. The new study’s comprehensive approach addresses some limitations of lab-based research by capturing real-world, self-reported pain experiences across diverse populations 1 2 4 5 8 10 11 12 13.
- Sex differences are most pronounced for chronic musculoskeletal pain, migraine, and some other clinical pain conditions 8 10 11 12 13.
- Laboratory studies often find smaller or inconsistent sex differences, especially for experimental pain thresholds and tolerance, except for pressure and thermal pain where women often report lower thresholds 4 5.
- The discrepancy may reflect the influence of social, environmental, and cultural factors in real-world pain reporting, which are not fully captured in laboratory settings 5 8.
- The present study’s global, population-based approach complements and extends the clinical relevance of previous research 1 2 3 8 10 11 12 13.
What role does healthcare and societal bias play in the gender pain gap?
Gender bias in healthcare contributes to the under-recognition and under-treatment of women’s pain. The new study’s emphasis on self-reported pain, rather than medical diagnoses, helps address concerns that women’s pain is dismissed or misattributed by providers, a theme echoed in the literature 1 6.
- Women are more likely to have their pain attributed to psychological causes or dismissed compared to men, leading to delayed diagnosis and less aggressive treatment 1 6.
- Stereotypes about gender and pain expression influence both patients’ reporting and clinicians’ responses 6.
- Increasing awareness and education about gender bias is critical for equitable pain management 6 8.
- The present research supports calls for routine sex-specific analysis and personalized pain management approaches 6 8.
How does pain prevalence vary globally and with age?
The global study’s finding that pain prevalence increases with age and is higher among women aligns with international data showing similar trends for specific pain conditions, such as neck and low back pain. The burden is projected to increase due to population ageing, especially in lower-income regions 9 10 12 13.
- Global burden studies reveal higher pain prevalence in women and older adults, with peaks around midlife to older age 9 10 12 13.
- Pain burden is often higher in low- and middle-income countries and is influenced by socioeconomic factors such as income and access to care 10 12 13.
- The new study’s observation of an “inverted-U” trajectory for disabling pain (peaking in mid-to-late adulthood) reflects patterns seen in analyses of specific pain types 9 10 13.
- Projected increases in pain cases are primarily driven by population growth and ageing 13.
Future Research Questions
While this global study advances understanding of gender differences in pain, several questions remain. Future research should address the mechanisms driving these disparities, the effectiveness of interventions to close the gender pain gap, and the influence of cultural, social, and economic factors on pain experiences and management.
| Research Question | Relevance |
|---|---|
| What are the biological mechanisms underlying sex differences in pain perception? | Understanding hormonal, genetic, and neurobiological factors could inform sex-specific pain management strategies 3 7 8. |
| How do cultural and socioeconomic factors influence the gender pain gap globally? | Identifying the impact of social determinants may help tailor interventions and reduce pain disparities in diverse settings 10 12 13. |
| What are the most effective clinical strategies for reducing gender bias in pain assessment and treatment? | Reducing gender bias in healthcare is crucial to ensuring equitable pain care and improving outcomes for women 1 6 8. |
| How do sex differences in pain change across the lifespan, and what are the implications for prevention and care? | Lifespan analysis can identify critical periods for intervention and inform age- and sex-specific pain management approaches 2 10 13. |
| What psychosocial factors mediate sex differences in pain reporting and disability? | Elucidating the roles of coping, emotion, social support, and history of trauma may help explain and address disparities in pain experiences 3 5 6. |