Can vaping cause cancer? The evidence suggests it might. Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, Vaping and Lung Cancer Screening: Reduced Rates Among Vapers Revealed AJMC E cigarettes 'DON'T cause cancer' UKVIA Comment UKVIA