Lung calcification is the scar left by the damage of lung parenchyma cells, which may be caused by pneumonia, tuberculosis, abnormal calcium and phosphorus metabolism, tumor, etc.. The main treatment means are drug therapy, surgery, chemotherapy, targeted therapy, etc. 1. Possible causes of pulmonary calcification (1) Inflammation: Incomplete absorption of inflammation, such as pneumonia and bronchitis, can lead to scar formation. (2) Tuberculosis: If infected with Mycobacterium tuberculosis, the lung tissue will wrap around the infected area and cause it to calcify. (3) Abnormal metabolism: Calcification will occur if calcium and phosphate metabolism are abnormal. (4) Tumor: If the calcification is large, we need to be alert to the possibility of tumor. 2.Treatment (1) Drug therapy: If symptoms such as dyspnea and coughing occur, drugs such as salbutamol should be used as soon as possible to relieve the symptoms; if it is tuberculosis, anti-tuberculosis treatment should be carried out. The medication should be used according to the doctor’s instructions. (2) Surgery: If the tumor is malignant, surgery should be chosen to remove the lesion. (3) Chemotherapy: killing cancer cells through chemotherapy. (4) Targeted therapy: to hit the tumor site precisely with drugs. If the imaging examination shows that there is calcification in the lungs, it should be treated in time in order to minimize the adverse effects of the disease.