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, 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 Popcorn lung: Teen first case of life threatening vaping injury Is Popcorn Lung Vaping Dangerous Can Vaping Give You Popcorn Lung? Vapor Shop Direct Popcorn Lungs Caused By Vaping Popcorn lung: What is it, and who is at risk? Harvard Health Does Vaping Cause Popcorn Lung? The Facts Explained