Female labor force growth drove a 198% expansion in the global health workforce
By 2023, the global health workforce had reached 122.1 million workers across 20 cadres, up by 81.2 million since 1990. The scale of that rise is striking on its own, but the sex distribution gives the finding its real clinical and policy weight: 68.9% of all health workers were female, and women accounted for 71.4% of net workforce growth over the period.
The pattern was not uniform across professions. Less than half of doctors were female, at 43.9%, while women made up 80.7% of nurses, 96.0% of midwives, and 89.5% of community health workers. Those figures describe a health system still segmented by occupation and sex, with women concentrated in roles that are indispensable to access, continuity, and frontline care, but less represented in physician cadres and other positions tied to clinical authority, leadership, and pay.
The analysis is built on a large harmonized evidence base: 1816 country-years from population-based surveys, 82 from censuses, 3888 from administrative sources, and 96 from scientific literature. Reported occupations were mapped to the International Standard Classification of Occupations 2008, then modeled with spatiotemporal Gaussian process regression across 204 countries and territories from 1990 through 2023. The result is one of the most detailed global portraits yet of human resources for health, not only in size but in composition by sex and cadre.
One sentence captures the central imbalance. The world added health workers, but it did not add them evenly.
Doctor, nurse, and midwife shortages remain the bottleneck for universal coverage
The expansion in numbers has not erased the workforce gap relative to service delivery needs. Using stochastic frontier meta-regression, investigators estimated the minimum density of doctors, nurses and midwives, dentists, and pharmacists needed to reach a score of 80 out of 100 on the UHC effective coverage index. On that threshold, the world would still need an additional 7.1 million doctors, 23.9 million nurses and midwives, 1.8 million dentists, and 1.6 million pharmacists.
Those shortages matter because universal coverage depends on the professions that keep primary care functioning, maternal health accessible, essential medicines dispensed, and chronic disease treatment sustained over time. A workforce can expand numerically while still failing to support the clinical pathways that UHC depends on: diagnosis, referral, medication access, delivery care, and longitudinal follow-up. Shortfalls in nurses and midwives are particularly consequential because these cadres carry much of the daily clinical workload in health systems that are already stretched.
The regional spread of density remains uneven. Sub-Saharan Africa retained the lowest densities across cadres, with the exception of community health workers, while high-income countries had the highest densities. That contrast reflects more than simple head counts; it signals differences in training capacity, labor market retention, migration pressure, wage structures, and the ability of health systems to absorb and sustain workers once they are trained.
A workforce shortage is never just a staffing problem. It shapes wait times, outreach capacity, obstetric safety, vaccination coverage, chronic disease control, and the everyday probability that patients will reach a trained professional before a condition worsens.
Workforce planning now has to account for sex composition, retention, and fairer deployment
The analysis points to a policy problem that cannot be solved with raw recruitment alone. Female workers were the main engine of growth, but the data also show occupational concentration and persistent cross-regional inequity. Health systems that depend heavily on women in nursing, midwifery, and community health roles need arrangements that support retention across the life course, especially in early career stages when attrition can be highest and when compensation, workload, safety, and advancement opportunities determine whether workers stay in the system.
Training expansion will be necessary, but training capacity without retention is a leaky investment. The discussion of remedies in this analysis centers on three linked areas: expanding education pipelines, improving remuneration and retention policies for early-career workers, and building gender-responsive workforce arrangements. In practical terms, those measures are aimed at keeping workers in the public system, reducing avoidable exit, and making deployment more responsive to population need rather than historical staffing patterns.
The sex composition of the workforce also carries organizational implications. When women dominate nursing, midwifery, and community health work but remain underrepresented among doctors, any health system planning exercise has to reckon with stratified opportunity, not just staffing counts. Pay scales, promotion pathways, leadership access, parental leave, scheduling flexibility, and workplace safety all shape whether female health workers are concentrated in lower-paid, lower-authority positions or are able to move across cadres and leadership ranks.
The global pattern is therefore both a success and a warning. More people are working in health than in 1990, and women have been central to that expansion. Yet the world is still far from the workforce density needed for moderate universal health coverage, and the gap is largest in the cadres that anchor clinical delivery. For countries already facing shortages, the question is no longer whether to invest in health workers, but how to build systems that can train, retain, deploy, and fairly reward them at scale.
The remaining challenge is concrete: closing the doctor, nurse, midwife, dentist, and pharmacist deficits without reproducing the same gender and geographic inequities that shaped the workforce over the past three decades.