Vaping 'likely' to cause lung and oral cancers, 'most definitive determination' to date finds Can Vaping Cause Cancer? What Does It Do to Your Lungs? Vaping harms your health Cancer Institute NSW 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