The so-called syndrome differentiation is to analyze and synthesize the data, symptoms and signs collected by the four diagnostic methods (looking, smelling, asking and pulse), identify the cause, nature, location and relationship between evil and positive of the disease, and summarize and judge it as a syndrome of a certain nature. The key of syndrome differentiation is syndrome differentiation, and the process of syndrome differentiation is the process of making a correct and comprehensive judgment on the pathological changes of diseases, that is, from perceptual knowledge to rational knowledge, analyzing and finding out the main contradictions of diseases.

The so-called treatment, also known as treatment, is to determine the corresponding treatment principles and methods according to the results of syndrome differentiation, and it is also the process of studying and implementing treatment. In a word, syndrome differentiation and treatment is the process of analyzing and synthesizing the data from four clinics, summarizing and judging the syndromes, and establishing the treatment principles and methods according to the syndromes and putting them into practice under the guidance of Chinese medicine theory. Syndrome differentiation is the premise and basis of determining treatment, and treatment is the means and method to treat diseases. The correctness of syndrome differentiation can be tested by treatment. The process of syndrome differentiation and treatment is the process of understanding and solving diseases. Syndrome differentiation and treatment are two interrelated and inseparable aspects in the process of disease diagnosis and treatment, which is the embodiment of combining theory with practice, the concrete application of theory, method, prescription and medicine in clinical practice, and the basic principle guiding the clinical work of traditional Chinese medicine.