"Mother-child relationship of liver and heart" is a physiological description of mutual promotion and mutual restriction relationship between liver and heart in TCM five elements theory. If the "mother-child relationship of liver and heart"was destroyed, the pathological phenomena, such as "disorder of mother-organ involving its child-organ" and "disorder of child-organ affacting the mother-organ" would occur. The different understanding of relationship between liver and heart in TCM and Western medicine was compare...