Can vaping damage your lungs? What we do (and don't) know Harvard Health We were shocked': Vaping considerably increases lung cancer risk among people who smoke One of the most serious risks of vaping? A condition called popcorn lung, or bronchiolitis obliterans. It's rare, but when it hits, it's permanentscarring the smallest airways in the lungs and causing Vaping and Lung Cancer Screening Capitol Imaging Services