Why interstitial pneumonia is not life-threatening depends on what causes it in the first place. Clinically, there are several common types of interstitial pneumonia. 1. Inflammatory infections: If the pneumonia is mild, it can usually be cured after treatment and is not life-threatening. If it is combined with severe viral pneumonia, the treatment effect is not good, and it may be life-threatening. 2. Rheumatic immune system diseases: Under the guidance of a doctor, medicines for rheumatic immune system diseases, such as glucocorticoids: prednisone, immunosuppressants such as cyclosporine, can be used to control the condition and slow down the progress. 3. Pneumoconiosis or silicosis: This is a more troublesome case because these patients usually have changes in the structure of the lungs and are prone to recurrent secondary bacterial infections and severe pneumonia, which will affect their life expectancy. However, in general, if bacterial infections are prevented, patients can have a longer survival time. 4. Idiopathic interstitial fibrosis: Generally, patients with pulmonary fibrosis will have progressive development, and patients will have gradual dyspnea, which will be progressively aggravated. Anti-fibrotic drugs, such as Nidanib, Pirfenidone, N-acetyl cysteine, can be applied. However, patients often develop respiratory failure in the later stages, requiring ventilator for assisted ventilation. It is important to note that patients should be treated under the guidance of a doctor and should not be treated privately.