E cigarettes are likely to cause cancer, including in the lungs and mouth, according to a sweeping review of scientific evidence that challenges their positioning as a safer alternative to smoking. There is The Dangers of Vaping Oral Health Perspective A scientific review has raised fresh concerns about the long term cancer risks of vaping, concluding that e cigarettes are probably carcinogenic, while also acknowledging significant gaps in the evidence. The analysis of reviews Vaping likely to cause lung and oral cancer, Australian researchers find in new review of evidence Vaping The Guardian Smoking: Effects, Risks, Diseases, Quitting & Solutions