Abstract:In the past few decades, the field of immunology has achieved a breakthrough in technical facets of how to suppress immunity or increase immune status. The subsequent challenges to overcome are how to evaluate the immunity and to establish a standard system for evaluating immunity. Analysis of lymphocyte subsets and cytokines as well as detection means at the gene level may reflect individual immune status to a certain extent, but these techniques are hardly of substantial value for diagnosis and treatment in clinical practice. We have established an immune evaluation method and scoring system for analysis of lymphocyte subsets based on the theory of Yin-Yang balance, which can not only quantify the level of immunity, but also guide the management of immunosuppressive drugs for patients with liver transplantation, monitor the changing trend of immunity for patients with tumors, and facilitate the diagnosis of autoimmune diseases.