Does e cigarette use increase the risk of cancer? Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control 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 October 15: The Week in Cancer News Cancer Today How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk E cigarette vapor linked to cancer in mice National Institutes of Health (NIH)