Does vaping cause popcorn lung? Allen Carr's Easyway High School Cheerleader Left with 'Deadly Diagnosis' After Secretly Vaping for 3 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. Legal Aussie vapes contain banned chemicals, testing reveals The Australian Popcorn Lung vs. Lung Cancer: Understanding the Critical Differences (and Why It Matters)