Chinese medicine therapy has advantages in treating aplastic anemia (AA) in depart- ments of Chinese medicine (CM) blood diseases. But there is no unified syndrome typing standard of CM for severe AA. Heat-toxin induced yin deficiency syndrome is one of severe AA syndrome types com- monly seen in authors' long-term clinical practice. This syndrome type has the features of asthenia in ori- gin and asthenia in superficiality. Therefore, authors put forward that detoxication, blood activating, and yin nourishing (DBAYN) method, taking detoxication as superficiality and Shen supplementing as origin. Meanwhile, blood activating and stasis removing was assisted. Detoxication aimed to eliminating evils and purifying blood, blood activating aimed to getting rid of evils and generating new blood, and yin nour- ishing aimed to strengthening vital qi and nourishing blood. Classical recipes such as Xijiao Dihuang De- coction and Erzhi Pill could be modified. This theory was of great significance in complementing and per- fecting CM theoretical systems of AA, which provided beneficial ideas and methods for clinical treatment of severe AA.
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