Chronic Obstructive Pulmonary Disease (COPD) - MSD Manuals

cop4dChronic Obstructive Pulmonary Disease (COPD) is a term used to describe chronic lung diseases including emphysema, and chronic bronchitis. ThisWhat causes COPD? Damage to your lungs from smoking is the most common cause of COPD. Other causes include: Alpha-1 antitrypsin deficiency (alpha-1), a genetic