Popcorn Lung Causes, Symptoms, Diagnosis, and Treatment Vaping has officially been linked to a rare and irreversible lung disease known as bronchiolitis obliterans, more commonly referred to as popcorn lung. This condition causes scarring and inflammation of the small Yes, vaping is toxic. A U.S. teen developed "popcorn lung" after secretly vaping for three years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the condition scars the lungs' tiniest E Cigarettes and Vaping PPAC Central