E cigarettes: 'cancer risk close to zero' Bhekisisa Preclinical study suggests 'e cigarettes' may promote lung cancer in high risk individuals ecancer 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 Although research on cancer risks associated with vaping is still limited, a 2025 systematic review found substantial evidence that e cigarette exposure is associated with biomarkers reflective of cancer disease risk. This includes