Evidence update on the cancer risk of vaping e cigarettes: A systematic review E cigarettes contain hazardous substances, addictive and harmful Smoking affects more than one organ. It can silently increase the risk of multiple cancers and long term health complications, often before symptoms even begin to appear. Tobacco use is directly linked to 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 Broad evidence implicates e cigarettes as a cause of cancer Stanton Glantz blog