asthma and copd are two diseases that lead to airflow obstruction. asthma is typically characterized by reversible airflow obstruction meaning the obstruction comes and goes. this is why asthmatics have varying symptoms. in contrast copd patients have chronic airflow obstruction. for some patients with asthma they can develop airway remodelling and persistent obstruction that looks similiar to copd on breathing tests. that's not exactly happen but person with copd could suffer from asthma.
can asthma lead to copd?