Multiple granular nodules and micronodular shadows in both lungs are mostly considered as pulmonary tuberculosis or pulmonary metastases, and there are different treatments according to different diagnoses. 1. Pulmonary cornual tuberculosis: it is tuberculosis disseminated by bloodstream, manifested by cough, sputum, low fever, night sweats and other symptoms, some patients have hemoptysis and chest pain. At this time, timely anti-tuberculosis treatment should be used in accordance with medical advice, such as isoniazid, rifampicin, pyrazinamide, ethambutol and streptomycin and other anti-tuberculosis drugs, and at the same time use ibuprofen, prednisone, tranexamic acid and other symptomatic treatment. 2. Tumor lung metastasis: Tumors of other organs can enter the lungs to form double-lung multiple granular nodules through blood dissemination and lymphatic metastasis, etc. At this time, the primary lesions should be clearly defined, and the primary lesions and lung metastatic nodules should be treated together, and at this time, surgical plan may no longer be applicable, and radiotherapy and other treatment plans should be used. Multiple corn nodules and micronodular shadows in both lungs, it is recommended that the patient consult a doctor in time to clarify the cause of the disease, so as not to delay the condition.