Vaping Likely Causes Cancer, Major Research Review Warns

A sweeping research review says that e-cigarettes likely contribute to cancer risk, based on biomarker, animal, and mechanistic data — but definitive evidence could take many more years to emerge.

The review, published in May 2026, is one of the most comprehensive analyses of vaping and cancer risk to date. Researchers examined biological markers in the blood and tissue of regular vapers and found clear signs of cellular damage consistent with early cancer development. Health authorities around the world are expected to use these findings to push for stricter regulations on e-cigarettes, which are particularly popular among young people.