Interstitial lung fibrosis is known to be a refractory disease in which patients have progressive exertional dyspnea as the main symptom, which can be accompanied by cough and other respiratory symptoms. Its clinical treatment is limited, so patients should not have high expectations and expect the fibrotic lesions to disappear. After clinical observation, we found the following outcomes of interstitial lung fibrosis. 1, complete absorption of fibrotic lesions and complete disappearance of respiratory symptoms, which is the best and the least promising. 2.After treatment, the clinical symptoms are relieved and the lesions are reduced, and this prognosis has a certain proportion. 3.After treatment, the clinical symptoms are relieved and the lesions are unchanged, this prognosis has a larger proportion. 4.No remission of symptoms and no change of lesions after treatment, this prognosis has a larger proportion. 5.Changes in the disease, secondary to lung tumors, this lesion has a certain proportion. 6, sudden changes in the condition, acute respiratory failure and death, there is a certain proportion. 7.Recurrent episodes of formation of cardiogenic cirrhosis, a smaller proportion. 8, A larger proportion of those with recurrent secondary lung infections.