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. 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. Possible mechanisms by which e cigarettes could affect respiratory health Download Scientific Diagram 21 year old hospitalized in what doctor says was 'vaping induced lung injury' Vaping Illness Tracker: 2,506 Cases and 54 Deaths The New York Times