Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs Is There a Link Between E Cigarettes and Lung Cancer? Prince Court Medical Centre New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking What Does Vaping Do to Your Lungs? Johns Hopkins Medicine E Cigarettes and Associated Health Risks: An Update on Cancer Potential