It is normal to have lymph nodes on the lungs. Lymph is located in various parts of the body and makes an important immune organ of the body. Clinically, enlarged lymph nodes are more relevant for the diagnosis of lung diseases. The location of the enlarged lymph nodes can be clearly determined in the form of chest CT, etc. It is common to have inflammation, tuberculosis, and tumors in the lungs, which cause enlarged lymph nodes. If it is simply inflammation or tuberculosis, causing can be treated with better efficacy by anti-inflammatory and other means. In particular, it can be controlled by rifampin, streptomycin, pyrazinamide, etc., all of which can help for tuberculosis, with medication for about a year. For lymph node enlargement caused by malignant tumors, the nature of the tumor can be clarified by surgical excision in the form of puncture, etc., and radiotherapy, chemotherapy, biotherapy, interventional therapy, etc., can be chosen as appropriate to regulate the treatment.