Popcorn Lung & Vaping Finally Debunked! Popcorn lung: Teen first case of life threatening vaping injury Does Vaping Cause Popcorn Lung? The Facts Explained Doctor shows x ray of 'popcorn lung' caused from vaping and it can be fatal 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 Experts say that flavored e cigarettes can cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans,