Emerging research from Australian scientists suggests that vaping may pose significant risks for developing lung and oral cancers. A comprehensive review conducted by the University of New South Wales highlights pre-cancerous changes in the body due to e-cigarette use, including DNA damage and inflammation. This study calls for urgent regulatory action to address the potential health hazards of vaping before conclusive long-term data becomes available.
Pre-Cancerous Changes Identified in Vapers
The research, published in the journal *Carcinogenesis*, synthesises extensive evidence from a variety of studies conducted between 2017 and 2025. Co-author Adjunct Professor Bernard Stewart emphasised that cellular and tissue alterations in the mouth and lungs are evident in individuals who inhale e-cigarette vapour. While the long-term implications of vaping remain unclear, the presence of biological markers associated with cancer is concerning.
The review did not specifically quantify how many individuals might develop cancer from vaping, nor did it isolate the effects of vaping from those of traditional cigarette use. Many individuals who vape also smoke, complicating the ability to attribute health risks to vaping alone. However, the research included case reports from dental professionals observing oral cancers in patients who exclusively vaped, alongside animal studies indicating a higher incidence of lung tumours in mice exposed to e-cigarette vapour.
Urgent Calls for Regulatory Action
Lead author Associate Professor Freddy Sitas drew parallels between current vaping trends and the delayed recognition of smoking as a health hazard, which took decades to solidify in public understanding. He cautioned that policymakers must take current evidence seriously rather than waiting for definitive conclusions that may take years or decades to establish.
Calvin Cochran, a public health researcher from the University of Otago, reiterated this sentiment, stressing that the scientific community should not overlook early warning signs associated with vaping. He warned that failing to acknowledge these risks could lead to a repeat of the historical oversight witnessed with smoking. “Every study like this should be considered seriously by policymakers,” he asserted.
The Misconception of Vaping as a Safe Alternative
The prevalent belief that vaping is a safer alternative to smoking is being challenged by the findings of this study. Professor Sitas remarked that although methods exist to help individuals quit smoking, no conclusive strategies have been developed to assist people in stopping vaping. He underscored the need for regulators to act proactively in protecting vulnerable populations, particularly children, from potential harm.
While some experts caution against equating the health risks of vaping with those of smoking—given the combustion products in traditional cigarettes—there is a growing consensus that e-cigarettes are not without their own dangers. Professor Stephen Duffy from Queen Mary University London noted that while vaping does not involve exposure to harmful combustion products, it is essential to evaluate the risks associated with e-cigarettes independently.
Implications for Public Health Policy
Professor Becky Freeman, a tobacco control researcher at the University of Sydney, highlighted the implications of this research for young people who have never smoked. She stated, “This study is the first to assert that there is likely an increased cancer risk for people who vape, compared to individuals who do not.” The results support existing Australian legislation that restricts access to vaping products, ensuring they are available primarily through pharmacies for those attempting to quit smoking.
Why it Matters
This research serves as a critical reminder that the narrative surrounding vaping must evolve in light of new evidence. Policymakers and health organisations must take heed of these findings to safeguard public health, particularly for young and vulnerable populations. The potential carcinogenic properties of e-cigarettes cannot be ignored, and proactive measures must be implemented to prevent a new public health crisis from emerging. As society grapples with the implications of vaping, the importance of rigorous regulation and informed public discourse has never been more apparent.
