Can Vaping Cause Lung Cancer? Here's What We Know The Lung Docs Australia Adds Vape Graphic Warnings Tobacco Reporter COPD and Vaping: Understanding the Risks and Long Term Effects New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking A scientific review has raised fresh concerns about the long term cancer risks of vaping, concluding that e cigarettes are probably carcinogenic, while also acknowledging significant gaps in the evidence. The analysis of reviews Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA