1, the establishment of simple and standardized Chinese medicine identification scheme In summary, in recent years, the understanding of IgA nephropathy in Chinese medicine is gradually deepening, but its identification scheme still has not tended to unify. In some cases of IgA nephropathy, TCM classification is extremely complicated, which makes it easy to make the classification repeatedly intertwined and confusing, making it difficult for the doctor to follow and confuse the clinical evidence. This is undoubtedly detrimental to the academic research, promotion and development of Chinese medicine in the treatment of IgA nephropathy, and hinders the improvement of clinical efficacy. Therefore, the establishment of a standardized Chinese medicine identification scheme that is simple to manage, easy to operate and repeatable is the first problem that needs to be solved. Therefore, in order to have a deeper understanding of the TCM symptoms of IgA nephropathy and its evolution pattern, it is necessary to “examine the disease and identify the evidence”. “In other words, we should identify the symptoms of IgA nephropathy based on the essence of IgA nephropathy, and analyze which symptoms are original to IgA nephropathy, which symptoms are caused by the development of the disease, and which symptoms and signs are caused by interfering factors. Only by “examining the disease and identifying the evidence” and distinguishing the essence of the disease, can we further treat the disease/evidence on this basis to improve clinical efficacy. 3, correct treatment and reasonable development of microscopic identification According to the Tibetan elephant theory, the diagnosis method of inspecting the outside to know the inside is one of the core elements of the diagnosis and treatment of Chinese medicine, so in the past, the identification of IgA nephropathy was mostly from the macroscopic clinical manifestations. In addition to observing the macroscopic manifestations of the disease, we can now use advanced science and technology, such as the pathological changes of renal biopsy, to investigate the local microscopic changes of the kidney and understand the nature of the disease, which also reflects the discriminatory thinking of Chinese medicine of “knowing the microscopic”, not to mention that IgA nephropathy is a disease that can only be diagnosed after renal biopsy, and the in-depth understanding of the disease should be based on the Chinese medicine. The understanding of TCM should be based on the pathology. Especially in the case of some mild IgA nephropathy where there is no clinical evidence to identify, it is a good idea and method to identify microscopic evidence through its pathology.