It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years. Doctors have linked vaping to a rare, incurable lung condition called obliterative bronchiolitis, often referred to as popcorn lung. The disease permanently scars and narrows the lungs' airways, causing lifelong breathing problems. The Safety of Geek Bar Pulse X Vapes: A Comprehensive Analysis Vape Papa Medical Professional Links 'Popcorn Lung' Disease to Vaping Montgomery Community Media