Vaping Marijuana Associated with More Symptoms of Lung Damage than Vaping or Smoking Nicotine Can vaping cause cancer? The evidence suggests it might. The Washington Post Popcorn lung: What is it, and who is at risk? Harvard Health 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. Doctors Say Vaping May Be Causing 'Popcorn Lung' YouTube