Does Vaping Cause Lung Cancer? What We Know (and Still Don't) Is There A Link Between E Cigarette Use And 'Popcorn Lung'? Popcorn lung what is it and why should you care? Vejpkollen.se Medical professionals are warning about bronchiolitis obliterans, commonly called "popcorn lung," a serious and permanent lung condition increasingly associated with vaping. The condition damages the smallest airways in the lungs, causing symptoms