OUTLINE Definition of coPd ° Epidemiology Etiology and risk factors Pathophysiology mechanisms Clinical manifestation How to make the diagnosis and assess the severity of disease Management of stable copd and AEcoPD Prevention MBBS project, Zhongshan HospitalMBBS project, Zhongshan Hospital OUTLINE • Definition of COPD • Epidemiology • Etiology and risk factors • Pathophysiology mechanisms • Clinical manifestation • How to make the diagnosis and assess the severity of disease • Management of stable COPD and AECOPD • Prevention