Multiple tiny nodules in the lungs are generally not serious and do not require special treatment, but require outpatient regular review of chest CT observation, and if the follow-up found that some of the nodules have the possibility of malignant transformation surgical resection is recommended. 1. Micro nodules in the lungs are generally less than 5mm in diameter, which are scars or abnormal growths formed in lung tissue after lung damage by airborne dust, particles or infectious lung diseases, tuberculosis, tumors and other diseases. 2. tiny nodule pathologic component to inflammatory edema granulomatous scarring is common, especially in the lungs with multiple tiny nodules. However, a small portion of them are tumor-like changes, which may develop into malignant nodules at a later stage. 3. Multiple microscopic nodules in the lungs generally do not need treatment, but need outpatient regular review of chest CT observation, if the nodule has increased more than 8mm, or density changes, malignant nodules are not ruled out, it is recommended that surgical treatment. For multiple micronodules, it is recommended to go to the thoracic surgery department or respiratory department of the hospital for further consultation and treatment.