Study Links E-Cigarettes to Increased Risk of Lung and Oral Cancer

Study Links E-Cigarettes to Increased Risk of Lung and Oral Cancer
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A new study has raised concerns that nicotine-containing e-cigarettes may increase the risk of lung and oral cancers, adding to growing global warnings about their health impacts, particularly among young users.

The research, led by scientists at the University of New South Wales, analyzed a wide range of international studies, including clinical research, laboratory experiments, and animal testing. Findings suggest that e-cigarettes are likely associated with cancer risk—even when used independently of traditional smoking.

Researchers identified biological evidence such as DNA damage and oxidative stress in humans, tumor development in animal studies, and cellular damage observed in laboratory settings. They also detected potentially carcinogenic substances in e-cigarette vapor, including volatile organic compounds and metals released during heating.

While the study does not provide precise risk estimates, experts emphasized that the evidence is increasingly consistent and concerning. They warned that the rapid rise in e-cigarette use—often marketed as a safer alternative—has led to widespread “dual use” with traditional cigarettes, potentially increasing health risks further.

The findings highlight the need for long-term human studies and stronger public health awareness, as researchers caution against repeating past delays in recognizing the dangers of conventional smoking.