E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) The Side Effects and Cancer Risk Associated with Vaping E cigarettes Found to Cause Change in Mouth Bacteria Which Could Lead to Gum Disease or Oral Cancer Respiratory Therapy Do e cigarettes cause cancer? Vaping Post Vaping and the use of e cigarettes are likely to cause cancer, according to a new study published by the University of New South Wales on 30 March. The study, which brought together