End-Stage COPD (Stage IV): Symptoms, Treatments, Prognosis

cop4dWhat 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 geneticChronic obstructive pulmonary disease (COPD) is the name for a collection of lung diseases including chronic bronchitis, emphysema, and chronic obstructive airways disease.