Reports of skin ailments tied to environmental conditions may sound like isolated incidents, but new research suggests the problem is far more widespread.
An international study found that many countries are already seeing climate-related shifts in skin disease patterns, with lower-income regions carrying the heaviest burden.
Here's what to know
The findings were presented at the European Academy of Dermatology and Venereology Congress 2026 in Vienna and came from the Global Access to Skin Health Observatory (SkinObservatory), a joint effort between the International League of Dermatological Societies and L'Oréal Dermatological Beauty.
As Down To Earth reported, representatives from 136 countries shared information on whether the changing climate is affecting the prevalence or severity of skin disease.
Overall, 42.6% of countries reported climate-related changes in skin disease. Differences by income level were especially stark: 55.6% of low-income countries and 52.5% of lower-middle-income countries reported changes, compared with 43.8% of upper-middle-income countries and 28.3% of high-income countries.
Of the 58 countries that reported climate-associated effects, 81% said heat rashes were increasing, while 75.9% reported growth in inflammatory skin diseases. Infectious diseases also showed a change in 62.1% of those countries, and 50% noted changes in vector-borne illnesses.
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"The most important finding from our study is that climate change is already associated with negative impacts on skin disease, and these effects disproportionately burden lower-income settings," said study author Dr. Esther Freeman, Harvard Medical School, per Down To Earth.
More background
Regional differences were also significant. Countries in the western Pacific most often reported climate-linked changes at 64.7%, followed by the eastern Mediterranean and Southeast Asian regions at 60% each. In Europe, that figure was far lower, at 16.1%.
Researchers also found uncertainty where information appears weakest. In the African Region, 42.9% of respondents told researchers they were uncertain about climate change's impact on skin disease, a finding the study said points to gaps in evidence and monitoring rather than an absence of risk.
Skin conditions can serve as an early, visible sign of environmental stress. Rising heat and humidity can increase sweating and irritation, while air pollution and other exposures can worsen inflammation. Shifts in temperature and rainfall can also help mosquitoes, ticks, and other disease vectors spread into places where they were previously less common.
The consequences can be especially serious in places with limited access to care. Many of the same lower-income countries reporting greater effects also face extreme heat, changing rainfall, fewer dermatologists, and less access to medicines, making it harder to prevent, identify, and treat worsening skin conditions.
What's being done?
The project was designed to map dermatologist distribution, workforce shortages, and barriers to care across World Health Organization member states so health leaders can better identify priority gaps and build skin health services more equitably, according to Down To Earth.
Researchers are also calling for stronger monitoring and better education, particularly in resource-limited settings where uncertainty remains high.
They also urged region-specific approaches instead of one-size-fits-all solutions. Risks vary sharply by region, income level, and climate conditions.
A JAMA Dermatology paper published in August 2026 found that Africa has fewer than three dermatologists for every million people on the continent, a sign of how limited the safety net already is in some of the places facing the greatest risks.
"We often think about the effects of extreme weather on heatstroke, cardiovascular problems and respiratory diseases, but the skin is our front line to climate change," Dr. Freeman said.
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