The journal Carcinogenesis publishes an article that is attracting a lot of attention. The title of the article is “The carcinogenicity of e-cigarettes: a qualitative risk assessment”.

The lead author of the article is Professor Bernard W Stewart from UNSW in Sydney. He and his research colleagues conclude that e-cigarettes probably cause cancer. They reviewed 116 articles, 15 of which were published in 2025.

Don't compare to smokers

Professor Stanton Glantz, who is highly respected in tobacco and nicotine research, writes about the new findings in his blog . He believes that this is very important and relevant information that is emerging. Glantz writes that unlike most discussions about e-cigarettes and cancer, these researchers avoid comparisons with cigarettes or even dual users and focus on “the carcinogenic effect of e-cigarettes themselves.”

Knowledge is increasing rapidly

The researchers summarize how exposure to e-cigarettes affects cancer-causing mechanisms, including tissue damage. They also look at laboratory studies of e-cigarette aerosols and their chemical components.

Finally, the researchers in Carcinogenesis write that a lot has happened in recent years when it comes to knowledge about the connection between cancer and e-cigarettes. In 2017, it was seen that more research was needed. In 2025, things will look completely different. Then there will be concerns that e-cigarettes can probably cause cancer.

read on