New Study Shows Vaping Causes Mouth and Lung Cancer What Does the Science Say? This headline is powerful but it needs context. E cigarettes (vapes) expose users to fewer toxins than Smoking has long been known as a major cause of lung cancer, but now, even vapes and e cigarettes are contributing to the risk. This World Lung Day, let's raise awareness and make Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs Vaping and Lung Cancer Screening: Reduced Rates Among Vapers Revealed AJMC Lung cancer risks persist with e cigarette use after quitting tobacco smoking Smoking, vaping called a deadly combination for lung cancer risk UPI.com