llnterleukin is a class of cytokines produced by and acting on a variety of cells. Interleukin 6 (IL-6) is an important member of the cytokine network, which is widely used in many clinical fields, such as regulating the growth and differentiation of a variety of cells, immune response, etc., and participating in the pathological process of a variety of clinical diseases, including bacterial infection, neonatal sepsis, and other acute and chronic inflammatory diseases.