Pulmonary fibrosis is difficult to be overcome at present. At present, except for lung transplantation, pulmonary fibrosis cannot be cured radically, and the progress of the disease can only be slowed down by medication or other treatments. Common symptoms of pulmonary fibrosis include purple lips, dyspnea, dry cough, generalized weakness, and finally respiratory failure, so it should be treated in time. In pulmonary fibrosis with a clear cause, such as smoking or rheumatic systemic diseases, after removing the cause of the disease, the pulmonary fibrosis may improve and slow down the disease, but it cannot be cured. For pulmonary fibrosis of unknown cause, it is difficult to cure because the cause cannot be treated. Timely treatment of pulmonary fibrosis can help to slow the progression of the disease and improve the prognosis.