"Hectic fever"is one kind of traditional Chinese medicine symptoms that call be Seen in marlv diseases and usually occurs in the afternoon during 3 to 5 PM.With constant clinical practices,doctors have proved that hectic fever can be induced by excess syndrome of Yang Ming Fu-organ,deficiency of blood and body fluid,stagnation of blood stasis,repression of qi activities due to humid heat,and floating of deficient yang qi.Therapies are divergent according to different pathogenesis.Clinically we should make the identification of etiology according to differentiation of symptoms and signs.grasp the essential pathogenesis and fully play the characteristics of TCM in treating based on syndrome differentiation and treating the same disease with different methods.