Scattered micronodules in both lungs are considered to be related to pneumonia, tuberculosis, lung cancer and other diseases, which need to be treated with medication, surgery, radiotherapy and chemotherapy in conjunction with the cause of the disease. 1. Pneumonia: Due to prolonged infection by bacteria, viruses and other pathogens, the lung mucosa will be stimulated, resulting in the appearance of micronodules in both lungs. It is recommended to give oral antibiotic drugs such as amoxicillin, erythromycin and azithromycin for bacterial infection. In daily life, it is necessary to pay attention to keep warm and avoid getting cold. At the same time, ensure sufficient rest time, do not overwork. 2. Tuberculosis: Due to the damage caused by Mycobacterium tuberculosis to the lung tissue, it will lead to micronodules in both lungs. Patients need to use anti-tuberculosis drugs under the guidance of doctors, such as oral isoniazid, rifampicin, pyrazinamide and so on. If necessary, surgery is needed to remove the localized lesions. Patients need to take the medicines on time according to the doctor’s instruction, and contact the doctor in time if the treatment effect is not good. 3. Lung cancer: caused by long-term lung exposure to smoking, air pollution ionizing radiation and other factors, it may lead to micronodules in both lungs. Generally surgery is the first choice of treatment for lung cancer, such as segmental lung resection, lobectomy, total lobectomy, etc. After surgery, patients can cooperate with combined treatment of radiotherapy and chemotherapy. Lung cancer patients need to quit smoking and drinking, and reduce exposure to irritating and harmful gases such as smoke and car exhaust. Some small nodules are small in number and without symptoms can still be observed dynamically. There are many other reasons leading to the appearance of micronodules in both lungs, and it is recommended that patients go to the hospital for relevant examinations in time to clarify the causes of the disease and target treatment.