Vaping is a cancer risk although less so than smoking, researchers say 22 year old diagnosed with lung cancer linked to vaping warns of 1 key symptom you shouldn't ignore Does Vaping Cause Cancer? Exploring the True Dangers of Vapes 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