How long you can live at age 50 with pulmonary fibrotic foci depends on whether the pulmonary fibrosis is localized or diffuse. Pulmonary fibrosis refers to fibrotic lesions that appear in the lungs on imaging. Localized pulmonary fibrosis foci generally do not affect life expectancy, and diffuse pulmonary fibrosis generally has a survival cycle of 3 to 5 years or longer. 1. Localized pulmonary fibrotic foci may be old foci left over from lung infections, organic pneumonia, tuberculosis, etc. and are mostly asymptomatic. If the fibrous foci are small and do not affect lung function, no treatment is needed. If the fibrous foci are large, they may cause structural lung disease, localized bronchodilation and recurrent infections, which will not affect the patient’s life expectancy after active treatment. 2. If there are multiple pulmonary fibrotic foci, or diffuse pulmonary fibrosis can cause chest tightness, cough, dyspnea, respiratory failure, and there is no specific drug, it will affect the patient’s life expectancy, idiopathic interstitial fibrosis diagnosis of the survival cycle is generally 3 to 5 years, some patients can survive more than 5 years. Discovery of pulmonary fibrotic foci, and the combination of cough, chest tightness and other symptoms, it is recommended to seek timely medical treatment, standardized treatment under the guidance of specialists.