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. Vaping Associated Pulmonary Injury Physiopedia Chemical analyses of whole aerosol smoke from Vuse Alto ENDS products Download Scientific Diagram