Lesions on the lungs are not necessarily tuberculosis. Lesions on the lungs can be seen in a variety of lung diseases, such as tuberculosis, pneumonia, pneumoconiosis, lung tumors, interstitial pneumonia, etc., but not always tuberculosis. Many diseases can cause lesions in the lung, some of them are specific, but most of them are not. It is necessary to combine with other examinations to further clarify the diagnosis, such as bronchoscopy, sputum for antacid bacilli, sputum for tumor cells, CT-guided aspiration, blood test sheets, etc., to further clarify the nature of the lung lesions, and then to carry out effective treatment according to the nature of the lung lesions. After a period of treatment, chest X-ray or chest CT will also be reviewed to clarify whether the lung lesions are absorbed or not.