E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA E cigarettes found to cause change in mouth bacteria which could lead to gum disease or oral cancer Buy Joyetech Vape Pens, Coils, Kits & Pod Systems PerfectVape 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 Broad evidence implicates e cigarettes as a cause of cancer Stanton Glantz blog