What is Popcorn Lung? Popcorn Lung is a serious, permanent lung disease caused by inhaling harmful chemicals like diacetyl, sometimes found in flavored vapes. Tips for Parents & Caregivers: Talk Doctor shows x ray of 'popcorn lung' caused from vaping and it can be fatal Does vaping cause Popcorn Lung? Vaperite E cigarettes can result in 'Popcorn Lung' 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 Vaping linked to teen's 'popcorn lung' type injury