E cigarettes Found to Cause Change in Mouth Bacteria Which Could Lead to Gum Disease or Oral Cancer Respiratory Therapy Switching from smoking to vaping dramatically reduces cancer risk Dr Colin Mendelsohn New research released today from UNSW has shown the strongest evidence yet that vaping likely causes cancer, with early signs like DNA damage already detected. While the long term evidence is still emerging, Fears vaping could cause Cancer Healthwatch Barnsley Does vaping cause throat cancer? Roswell Park Comprehensive Cancer Center Buffalo, NY