Symptoms of stable chronic obstructive pulmonary disease (COPD) are usually mild cough, sputum and shortness of breath after activity. COPD is a disease in which there is persistent airflow limitation in the airways and respiratory symptoms such as cough. In the stabilization phase, cough symptoms are usually not very serious, and in the early stages, the cough is usually chronic and mild, with a pronounced morning cough and occasional bouts of coughing at night. Coughing up sputum is relatively small, usually white mucous sputum or plasma foam sputum. Patients with chronic obstructive pulmonary disease (COPD) have poor lung function, mostly characterized by shortness of breath, wheezing and chest tightness with light activity. Patients are usually malnourished and fatigued. In the stable stage, if there is a combination of pulmonary heart disease, there may be symptoms such as palpitations, panic and cyanosis. Patients with chronic obstructive pulmonary disease are recommended to be treated aggressively to improve symptoms and slow the progression of the disease.