This lung damage from e cigarettes is permanent and entirely preventable. Flavored e cigarettes, often marketed with candy like appeal, may be far more dangerous than they seem. A recent case involving a U.S. Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine Can vaping damage your lungs? What we do (and don't) know Harvard Health Vaping Danger in Spotlight as Lung Injury Cases Mount Methodist Health System Omaha, Council Bluffs, Fremont Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition.