Growing the research evidence on e cigarettes by Research at CRUK Medium Teens inhale cancer causing chemicals in e cigarettes E Cigarettes and Associated Health Risks: An Update on Cancer Potential 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 Lung cancer risks persist with e cigarette use after quitting tobacco smoking We were shocked': Vaping considerably increases lung cancer risk among people who smoke