| In Chinese medicine , there are two significations about stagnation: one is pathogenesis,means blockade,obstruction or not smooth.Another is melancolia that refers to a category of deseases caused by mental stress and stagnation of functional activities of qi.Because of the difference in understanding the etiology and pathogenesis of "stagnation" concept among the historical physicians in Chinese medicine , the universality of "stagnation" concept ,and the levity and complicacy in syndrome of stagnation ,it makes later scholars feel some kind of confusion in studying the subject. Therefore , the origin and development of stagnation in defferent dynasty has been collected and analysed at the begining of this article.Encompassing thousands of years of history in Trational Chinese Medicine, the theory and therapeutic method of alleviating the pathological state of stagnation becomes more integrated and available. From "five kinds of stagnation", "six kinds of stagnancy" to melancolia caused by mental stress, the therapeuticmethod has a track record with successfully solved ptactical problems and wrought with valuable clinical experience bearing marked curative effects. The article reviewed and studied the characteristic of therapeutic method at defference ages,classified and researched the important thoughts of diagnosis and treatment as well.In order to realize formulae of alleviating the pathological state of stagnation more completely and make them benefit for clinic therapy,the paper classified the formulae based on five kinds of stagnation which comes from the Yellow Emperor's Internal Classic originally and six kinds of stagnancy.It list the famous formulae in order to idiographic pathogenesis,discussed and appraised their origin and directions and effects. |