Smoking and cancer Fresh Vaping can cause cancer, say researchers but still isn't as damaging as smoking cigarettes. More than 5.5 million Britons currently use e cigarettes, which have long been viewed as a safer alternative How Do Cigarettes Cause Cancer? Memorial Sloan Kettering Cancer Center Adolescents and E cigarette Use: Long term Effects, Behaviors and Lung Injury 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 Dangers of E Cigarettes