Pulmonary sclerosis is the development of fibrotic growth in the lungs, which is an irreversible lung disease. There are many causes of pulmonary fibrosis, such as lupus erythematosus, rheumatism, and pneumonia, all of which can cause localized fibrosis in the lungs. In addition, long-term inhalation of large amounts of dust for occupational reasons can lead to pneumoconiosis and pulmonary fibrosis. Mild pulmonary fibrosis usually does not cause significant damage to lung function and does not require treatment. However, if lung fibrosis is more serious, it may cause shortness of breath, cough, sputum, dyspnea, and in severe cases, respiratory failure, which may affect the patient’s life and health. Lung fibrosis, patients should consult a doctor when adverse symptoms occur.