Syndrome elements and syndrome essential factors, which are both hot topics in TCM theory research in recent years, are originated from same theory and same standard with totally different definitions which are presented in the aspects of basic concept, combining disease and prescription with syndrome; that is called ＂triple forks from one source （Yi Yuan San Qi）＂ . Traditional Chinese medicine is a relative conservative science; it is rather difficult to germinate new theories and viewpoints. Once a new theory is put forward, it will undou...
