What causes lung obstruction?

Lung obstruction is called chronic obstructive pulmonary disease (COPD), which is a group of chronic airway obstructive diseases. Their common characteristics are chronic airway obstruction caused by lung parenchyma and small airway damage, increased respiratory resistance and pulmonary insufficiency. For example, people who smoke for a long time, increased airway secretions, and widespread airway narrowing cause obstructive ventilation dysfunction when lung function is performed. COPD is mainly related to other obstructive diseases. Because COPD may cause respiratory disorders, shock and other problems, patients with COPD should go to regular hospitals for professional diagnosis and treatment in time.