according to the present sit uation of research on essence of T CM syndromes specificity and reproducibility observed is not strong, puts forward the possible heterogeneity characteristics associated with thecer tificate.Based on expounding the permit heterogeneityconcept, classification, key from the certificate to characterize the heterogeneity and heterogeneity, therapeutic effect of syndrome essence of syndrome essence difference and heterogeneity, genetic factors and syndrome essence of heterogeneity, table five aspects of epigenetic s...