Pulmonary fibrosis is a relatively serious disease that is an irreversible change and is difficult to cure once it has developed. Pulmonary fibrosis is caused by a combination of factors, such as environmental factors, drug factors, disease factors, and some patients may also be related to smoking, infection, genetics and other factors. The onset of the disease is relatively insidious, and the clinical manifestations are somewhat similar to those of many diffuse lung diseases, mainly manifested as dyspnea, accompanied by dry cough, pestle fingers, and usually in the late stages of the disease, there will be obvious symptoms of cyanosis, pulmonary hypertension and right heart insufficiency. Pulmonary fibrosis is a more serious disease, most patients show a slow decline in lung function, a small number of patients in the course of the disease repeated acute exacerbation, pulmonary fibrosis is generally not self-healing, once formed is difficult to cure. It is recommended that patients go to a regular hospital in time, under the diagnosis of the doctor, according to the patient’s specific condition, to take targeted treatment.