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Growing Research Links Tattoos to Possible Cancer Risks, Experts Say

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Tattoos are more popular than ever, but a growing body of research suggests a connection between permanent ink and certain types of cancer. How concerned should the public be?

From tribal sleeves to lower-back butterflies, humans have been inking their skin for thousands of years. For most, the main concern has been the fear of future regrets. However, recent studies suggest that tattoos could carry more serious long-term health risks.

The popularity of tattoos has risen sharply in recent years. Research published in the European Journal of Public Health estimates that between 13 and 21 percent of people in Western Europe now have at least one tattoo. Despite this prevalence, relatively little is known about the potential long-term effects of permanent ink.

Previous studies have shown that tattoo pigments can accumulate in the lymph nodes, sometimes causing inflammation and, in rare cases, lymphoma—a type of blood cancer. A 2025 study by the University of Southern Denmark (SDU) expanded on this, reporting that individuals with tattoos may face higher risks of skin cancer and lymphoma. Using a cohort of randomly selected twins, the researchers found that tattooed participants had nearly four times the risk of skin cancer compared with their non-tattooed siblings.

The study also suggested that tattoo size could affect risk, with designs larger than the palm associated with higher hazard rates.

“We have evidence that there is an association [between the amount of ink and risk] for lymphoma and for skin cancer,” said Signe Bedsted Clemmensen, co-author of the study and assistant professor of biostatistics at SDU. “For lymphoma, the hazard rate is 2.7 times higher, so this is quite a lot. And for skin cancers, before it was 1.6 and now it’s 2.4. This indicates that the more ink you have, the higher the risk, the higher the hazard rate.”

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Clemmensen emphasized that these findings remain preliminary, with many variables—including ink types, tattoo placement, and genetic and environmental factors—still under investigation. “The bottom line is, more research is needed,” she said. “But also, the next step I think is studying the biological mechanisms [of getting tattooed] and trying to understand what happens there.”

Experts also note other risks unrelated to cancer. Tattoo inks consist of pigments combined with a carrier fluid to deposit color into the dermis. Some inks, often imported, can contain trace amounts of heavy metals such as nickel, chromium, cobalt, and lead, which can trigger allergic reactions or immune sensitivity. In 2022, the European Union restricted more than 4,000 hazardous substances in tattoo inks under its REACH regulations.

While tattoos are generally considered safe when applied hygienically, the long-term health consequences remain uncertain. “It’s up to each of us how we choose to live our lives, right? But as a researcher, it’s also my job to inform people of these risks,” Clemmensen said. “Or, when it comes to tattooing, right now it’s more about informing people about how little we know.”

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EU Split Over Extra Market Protection for Medicines as Biotech Act Talks Intensify

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EU health ministers remain divided over a proposal to extend market protection for certain innovative medicines, as Brussels seeks to balance industrial competitiveness with patient access and healthcare affordability.

The proposal, part of the wider Biotech Act package, would grant an additional year of exclusivity under Supplementary Protection Certificates for selected treatments. These would apply to medicines containing new active substances, those with different mechanisms of action compared with existing therapies, products tested in more than two EU member states, and drugs with at least one manufacturing step carried out within the bloc.

The European Commission argues the measure is necessary to attract biotech investment, strengthen domestic manufacturing, and prevent pharmaceutical innovation from shifting to other global markets. EU Health Commissioner Olivér Várhelyi defended the proposal, saying that without stronger incentives, many new treatments would not reach Europe until after patent expiry elsewhere.

He also rejected concerns over cost implications, suggesting that greater investment in preventive healthcare could offset long-term spending pressures on national health systems.

However, several member states raised strong objections, warning that longer exclusivity periods could delay the entry of cheaper biosimilar alternatives and increase strain on public healthcare budgets. Critics also questioned whether the proposal sufficiently considers unequal access to medicines across the EU.

Malta highlighted stark disparities in availability, noting that it had access to only 17 innovative medicines approved between 2020 and 2023, compared with more than 150 in Germany and over 140 in Italy. Officials warned that extending monopoly rights could deepen such inequalities.

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Estonia echoed these concerns, stressing the need for a balanced approach that considers affordability, accessibility, and the long-term sustainability of national health systems.

Other delegations, including Poland and France, questioned whether the Commission had provided enough evidence to justify the policy shift. Some ministers pointed out that the proposal was not accompanied by a standalone impact assessment and relied instead on broader pharmaceutical sector analysis.

Despite disagreements, there was broad agreement on the need to simplify clinical trial procedures, reduce administrative burdens, and avoid regulatory overlap. Many countries also emphasised the importance of strengthening biosimilar markets, which are seen as critical to lowering drug costs and improving patient access across the EU.

France and several other member states argued that biosimilars play a key role in ensuring system resilience and affordability, particularly for smaller healthcare systems.

The debate reflects a broader fault line in EU industrial policy: how to encourage innovation without undermining access and cost control.

As negotiations continue, attention is shifting to Ireland, which will assume the Council of the EU presidency next. Irish Health Minister Jennifer Carroll MacNeill urged member states to accelerate discussions, citing increasing global competition in biotechnology.

She said the external environment makes rapid progress essential and confirmed that Ireland will prioritise clinical trial reform and measures to strengthen Europe’s biomanufacturing capacity.

MacNeill added that Europe must streamline regulatory frameworks to remain competitive, warning that delays could allow other regions to pull further ahead in biotech innovation.

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EU Ministers Back Biotech Rule Overhaul to Boost Innovation and Organ Transplant Cooperation

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EU health ministers have agreed on a common position to update biotechnology and organ transplantation rules, as the bloc seeks to strengthen its competitiveness in a sector increasingly dominated by the United States and China.

The agreement, reached on 16 June, forms part of the broader Biotech Act package and focuses on revisions to two existing directives covering genetically modified micro-organisms (GMMs) and organ processing procedures. The reforms aim to make regulatory frameworks more flexible, reduce administrative burdens, and improve cross-border cooperation in medical and scientific fields.

Officials say the changes are intended to help Europe catch up in biotechnology innovation, where global rivals have accelerated investment and development in recent years.

Cyprus Health Minister Neophytos Charalambides, who led the negotiations, said the update reflects scientific and technological advances that have taken place since the original rules were introduced. He described the revision as both a practical adjustment and an ethical necessity, given the pace of change in the sector.

Under the revised approach, EU countries agreed to adjust terminology in the European Commission’s proposal. The term “low-risk GMMs” has been replaced with “GMMs eligible for an expedited procedure”, reflecting a more streamlined approval pathway. In addition, consent for placing certain GMMs on the market may now be valid for up to ten years, instead of indefinitely.

The agreement also introduces provisions allowing personal data processing to be treated as serving the public interest in specific cases, particularly where it supports medical or scientific outcomes.

In the area of organ transplantation, member states agreed to extend the implementation period for updated rules from 24 months to 36 months, giving national health systems additional time to adapt to the new requirements.

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While the compromise was largely supported, discussions highlighted continuing tensions within the EU over how to balance innovation with safety oversight. Several member states stressed the importance of maintaining strict ethical safeguards, protecting personal data, and preserving national control over transplant systems.

The agreement among member states allows negotiations with the European Parliament to begin once it finalises its position. Lawmakers in the Parliament’s Health (SANT) and Environment (ENVI) committees are currently reviewing the proposal, with MEPs Adam Jarubas of the European People’s Party and Marta Temido of the Socialists and Democrats leading the process.

Charalambides also suggested that upcoming talks should take into account an opinion issued by the European Data Protection Supervisor in late May, noting that it arrived too late to be fully incorporated into the Council’s position.

As Cyprus concludes its presidency of the Council of the EU, responsibility for advancing the file now passes to Ireland, which will guide the next stage of negotiations between member states and the European Parliament.

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UNICEF Warns Climate Crisis Is Exposing Nearly All Children to Rising Global Health Threats

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Nearly every child in the world is now exposed to at least one climate-related hazard, with many facing multiple overlapping risks that threaten their health, education and long-term development, according to a new UNICEF report.

The findings highlight how intensifying climate change is reshaping childhood on a global scale, as heatwaves, floods, droughts and wildfires become more frequent and severe. UNICEF Executive Director Catherine Russell said children are already experiencing the consequences in their daily lives.

“The lives of children continue to be upended by the impact of heatwaves, wildfires, droughts and floods,” she said, noting that around half of the world’s children now live amid at least three overlapping climate threats.

The report warns that while the physical and mental toll on children is significant, it remains under-measured in global assessments. It also calls for stronger investment in health, education and infrastructure systems designed specifically to withstand climate shocks and protect younger populations.

UNICEF said children are disproportionately affected because their bodies are still developing, making them more vulnerable to heat stress, pollution and disease. Although these biological factors cannot be changed, the agency stressed that governments can reduce risks by strengthening essential services and infrastructure.

The report outlines how climate hazards often trigger cascading crises. Droughts can destroy crops and worsen food insecurity, while also leaving dry vegetation that fuels wildfires. These fires increase air pollution and can be followed by floods, which damage land and increase the spread of waterborne diseases.

Flooding remains one of the most widespread threats, with more than 360 million children globally exposed. UNICEF warns floods can cause drowning, injury and outbreaks of diseases such as cholera and malaria. Damaged housing also increases the risk of mould exposure, contributing to respiratory illness.

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Extreme heat is another major concern. More than 1.5 billion children are exposed to frequent heatwaves, which can lead to heat stress and long-term health complications. Pregnant women are also at increased risk of complications, including preterm birth and high blood pressure disorders.

Air pollution remains a nearly universal risk, with about 2.3 billion children living in areas with unsafe air quality. Because their lungs and immune systems are still developing, children are particularly sensitive to long-term damage caused by polluted air.

The report also highlights the growing spread of vector-borne diseases. Around 1 billion children are now at risk of malaria, alongside increasing exposure to dengue and other infections linked to changing climate conditions.

UNICEF says these combined threats are not only a health crisis but also a major barrier to education and development, warning that urgent action is needed to build resilience and protect future generations.

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