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 Current thinking about the effects of e cigarettes on oral cancer risk BDJ Team While vaping is not risk free, it is less harmful than tobacco Our World in Data Smoking affects more than one organ. It can silently increase the risk of multiple cancers and long term health complications, often before symptoms even begin to appear. Tobacco use is directly linked to E cigarettes: facts, stats and policy recommendations