Growing the research evidence on e cigarettes by Research at CRUK Medium Preclinical study suggests 'e cigarettes' may promote lung cancer in high risk individuals ecancer Fears vaping could cause Cancer Healthwatch Barnsley E cigarettes are likely to cause lung cancer and oral cancer We were shocked': Vaping considerably increases lung cancer risk among people who smoke E cigarettes 'likely' to cause two different types of cancer due to 'tumour causing chemicals damaging DNA'