TCM is a subject that deals with the physiology and pathology, as well as diagno-sis, prevention and treatment of disease. TCM considers the body. of man and the natu-ral world as an inseparable whole. Using the method of synthetic analysis TCM on the macroscopic point of view studies dynamic intrinsic TCM on the macroscopic point of view studies dynamic intrinsic relationships of the body and the relationship between in-terior and exterior envrvonments and then makes clear of basic physiology to serve med-ical practice.

After long-term medical practice and revision ,as well as thousands of years of clini-cal tests and improvements, TCM has evolved into a unique medical system with very special ways of diagnosis ,theory ,and medication.

TCM is based on laws, concepts, and theories, covering a widespread theoretical system encompassing the yin and yang theory, the theory of the five elements, visceral manifestations, the meridian, theory, pathogenesis of disease, pathology, diagnostics, syndrome differentiation, prevention of disease ,and therapeutic principles. It is these ba-sic theories which provide the theoretical basis upon which to build a deep under-standing of medicine and which provided the tools necessary to probe into the theoretical systems of TCM.