Patients with bad lungs may have the following symptoms: 1. cough, coughing, sometimes more sputum, sometimes less. 2. chills, fever, the degree of fever varies, can be high or low. 3. hemoptysis, can be a small amount of hemoptysis, but also a medium or even a large amount of hemoptysis, medium or large amount of hemoptysis may cause the risk of asphyxia, pay special attention. 4. chest tightness, shortness of breath, dyspnea, severe patients may appear respiratory failure, requiring oxygen or even ventilator-assisted ventilation. 5. 5, wasting, weakness, weight loss, and even some patients can appear in a state of cachexia. If there is bad lung, early treatment is necessary.