Former Smokers Who Vape at Greater Risk of Lung Cancer RT E Cigarettes and Vaping OHSU A scientific review has raised fresh concerns about the long term cancer risks of vaping, concluding that e cigarettes are probably carcinogenic, while also acknowledging significant gaps in the evidence. The analysis of reviews Can vaping cause cancer? The evidence suggests it might. The Washington Post The research looked at the chemical composition of "vape smoke" and assessed its cancer risk using data from published animal studies. Read more