Chronic obstructive pulmonary disease is called chronic obstructive pulmonary disease, which starts slowly and has a long course, and its main symptoms include the following: 1. chronic cough: with the development of the disease, it can last for a lifetime, often with obvious cough in the morning and paroxysmal cough or sputum at night; 2. coughing sputum: generally white mucus or plasma foam sputum, occasionally with blood, more sputum in the early morning, more sputum in the acute attack, coughing with purulent sputum; 3. shortness of breath or dyspnea: it appears in the early stage when exertion, and then gradually worsens, so that shortness of breath can be felt in daily activities or even at rest, which is the signature symptom of slow obstructive pulmonary disease; 4. wheezing and chest tightness: some patients, especially severe patients, or wheezing appears in the acute exacerbation; 5. other symptoms: patients in the late stage have weight loss, loss of appetite, etc.