Global study links climate change to rising skin diseases across 42 percent of nations

A new international study reveals that climate change is linked to changes in skin disease prevalence or severity in 42.6% of countries worldwide. Researchers presented these findings at the European Academy of Dermatology and Venereology Congress 2026, pointing to heat, pollution and extreme weather as key drivers worsening skin health.

Impact and Income

The research covered 136 countries and showed that lower-income nations face a heavier burden. Lower-income countries reported these impacts at a rate of 55.6%, while lower-middle-income countries reported 52.5%, compared with just 28.3% for high-income countries. Among the 58 countries noting climate-linked skin effects, 81% saw increases in heat rashes and 75.9% noted changes in inflammatory skin diseases. Furthermore, 62.1% reported changes in infectious skin diseases, and half noted shifts in vector-borne diseases. Study author Dr Esther Freeman stated that climate change is already associated with negative impacts on skin disease, and these effects disproportionately burden lower-income settings, noting that the skin serves as our front line to climate change.

India and Factors

The findings hold high relevance for India, where prolonged heat waves, high humidity, flooding, air pollution and shifting infectious disease patterns expose large populations to environmental stress. The trends are driven by interacting factors, as higher temperatures and humidity increase sweating and skin irritation, while heat and air pollution trigger inflammatory conditions. Outdoor workers such as agricultural labourers, construction workers, street vendors and sanitation workers face long hours of exposure to heat, sunlight, dust and pollution.

Context

Skin health is often overlooked in climate discussions that primarily focus on heat-related deaths, respiratory problems and vector-borne infections. The study highlights that unequal access to specialist care, clean water and protective clothing in lower-income settings makes managing these growing dermatological challenges even harder.