Diseases and Conditions

Emphysema

Causes

The main cause of emphysema is long-term exposure to airborne irritants, including:

  • Tobacco smoke
  • Marijuana smoke
  • Air pollution
  • Chemical fumes and dust

Rarely, emphysema is caused by an inherited deficiency of a protein that protects the elastic structures in the lungs. It's called alpha-1-antitrypsin deficiency emphysema.