Inflammatory mediators of lung injury are inflammatory response chemical factors, such as vasoactive amines and leukotrienes, that are produced and released in body fluids and cells during the inflammatory response in the lung. Most of the inflammatory responses caused by these inflammatory factors are caused by the combined action of 2 or more inflammatory mediators. Common inflammatory mediators are listed below: 1. Inflammatory mediators produced by body fluids: such as histamine, cytokines (e.g., IL-1, IL-6, etc.), oxygen free radicals, lysosomal enzymes, etc. 2. inflammatory mediators produced by cells: including complement fragments, prostaglandins, leukotrienes, elastin fibers, and so on. Inflammatory mediators of lung injury include lysosomal components such as slow-reacting substances, oxygen free radicals, growth factors, etc., in addition to the above. In case of lung injury, it is recommended to seek prompt medical attention and targeted treatment with the help of a doctor.