Doctors Say Vaping May Be Causing 'Popcorn Lung' Debunking the myth: There's no link between vaping and popcorn lung One of the most seriousand least discussedrisks linked to vaping is a condition known as popcorn lung, or bronchiolitis obliterans. It's rare, but permanent. The disease causes scarring in the lungs' Does vaping cause popcorn lung? Allen Carr's Easyway What is Popcorn Lung and Can Vaping Cause It? Health BeatHealth Beat