Chest radiographs with shadows may be pneumonia, tuberculosis, lung tumors or other diseases, need to improve the relevant examination to clarify the diagnosis, the treatment of different diseases is different. First, patients with pneumonia need anti-infection treatment, and review can be done after anti-infection; second, patients with tuberculosis need anti-tuberculosis treatment, commonly used anti-tuberculosis drugs include isoniazid, rifampicin, pyrazinamide, streptomycin, etc. In the process of using anti-tuberculosis drug treatment, it is necessary to pay attention to the side-effects of the drug and make targeted treatment; third, lung tumor, diagnosed with a lung tumor should be considered for surgical treatment, and after the surgery, adjuvant radiation, chemotherapy, targeted cellular drug treatment, or immunotherapy. Third, lung tumor, diagnosed as lung tumor, should consider surgery, post-surgery adjuvant radiotherapy, chemotherapy, targeted cellular drug therapy or immunotherapy. If the patient’s chest X-ray shows lung shadow, further examination is very necessary.