Glassy nodules in the lungs may be caused by infections of pathogenic microorganisms, or malignant nodules. If a patient has a glassy nodule due to infection by pathogenic microorganisms, the appropriate treatment can be given according to the pathogenic microorganisms, as follows: 1. bacterial infection: treatment with antibiotics is required; 2. atypical pathogenic bacterial infection: antibiotics with macrolides or quinolones are required; 3. viral infection: antiviral and antipyretic drugs are required; 4. tuberculosis Mycobacterium bifidum infection: need to use anti-tuberculosis drugs for treatment. If the patient’s glassy nodule is diagnosed as malignant nodule, surgery, radiotherapy, chemotherapy, target cell drug therapy, etc. can be considered.