Skin Cancer Risk Declines in Children: Australian Study Reveals Significant Drop in Mole Development

A long-term Australian study has revealed a promising trend: a significant reduction in the risk of skin cancer in future generations. Researchers at the QIMR Berghofer Medical Research Institute found a 47% decrease in the number of moles developing on children’s bodies compared to those of previous generations.

The Impact of Sun Safety Campaigns

This surprising medical advancement is attributed to decades of public health campaigns promoting sun safety and reducing excessive sun exposure. The study, published in the British Journal of Dermatology, followed 3,957 children in Southeast Queensland, Australia, from 1992 to 2016, tracking the development of moles annually.

The findings indicate that the average number of moles on children has decreased from around 50 to nearly half that amount. This reduction translates to a fourfold protection against the risk of melanoma, one of the most dangerous forms of skin cancer.

Critical Period for Mole Development

The research confirms that the critical period for mole growth occurs before the age of twelve. This highlights the importance of early sun protection measures to safeguard the health of future generations.

Beyond Sunscreen: Comprehensive Sun Protection

Researchers emphasize that relying solely on sunscreen is insufficient. Comprehensive sun protection strategies, including wearing hats and protective clothing, are crucial, especially for children. They note that children are more likely to consistently adhere to protective measures compared to adolescents and adults.

Australia’s Skin Cancer Rates and the Importance of Prevention

These results are particularly significant for Australia, which has the highest rates of skin cancer in the world. Skin cancer claims the lives of approximately 1,300 Australians each year.

Melanoma Risk Prediction and Screening

Tools like the QIMR Berghofer Melanoma Risk calculator are valuable resources for assessing individual risk factors. These calculators, developed using data from the QSkin Study involving over 45,000 Australians, help identify high-risk individuals who may benefit from more frequent skin checks. The latest version of the calculator, released in October 2025, incorporates 16 self-reported factors, including age, skin type, hair color, and sunspot history, and even accounts for regional variations in UV exposure.

Ongoing Research into Melanoma

QIMR Berghofer researchers are actively investigating various aspects of melanoma, including the potential of octopus venom to slow cancer growth, identifying genetic predispositions to the disease, and developing personalized medicine approaches to improve treatment outcomes. They have also identified two new gene faults that significantly increase melanoma risk.

Recent research also suggests a potential rise in ‘pre-cancerous’ melanomas being treated, a trend observed both in Australia and globally.