Multiple small nodules in both lungs with calcified foci in the left lung is a descriptive diagnosis of intrapulmonary lesions suggesting multiple nodular-like changes in the lungs, some of which are calcified, as seen in pneumonia, tuberculosis, pulmonary nodular disease, and intrapulmonary metastases. The finding of multiple round and oval hyperdense shadows within the lungs, some of which show calcium density, by CT examination of the lungs would suggest multiple small nodules in both lungs with calcified foci in the left lung. A variety of diseases in the lungs, such as pneumonia, tuberculosis, pulmonary nodular disease, intrapulmonary metastases, etc., can cause the corresponding conditions, the most common is the residual after the absorption of inflammation, need to be combined with clinical symptoms, under the guidance of the clinician for regular review. Pneumonia, tuberculosis and other residual without any symptoms, and review of the nodule does not have any changes, basically do not need to worry. Interstitial fibrosis may occur after pulmonary nodular disease, which requires the application of glucocorticosteroids; the enlargement of some of the nodules needs to exclude the possibility of tumors, if necessary, need to do a puncture biopsy, and the discovery of malignant lesions requires surgical treatment. Discovery of multiple small nodules in both lungs left lung calcification foci, it is recommended that patients seek timely medical treatment, so as not to delay the condition.