试论心肾相交、水火既济

心肾相交、水火既济是中医学中的一个重要概念，目前对其论述比较混乱。文章从古代论述、阴阳理论、五行角度系统梳理了水火既济和心肾相交的含义，阐述了阴阳冲和、水火既济、心肾相交三者之间的区别及联系，提山了心肾相交应有广义和狭义之分，广义的心肾相交是指心肾之气的全面交感，狭义的心肾相交单指肾水与心火的相交，并指出了心肾相交的途径、时间和其他含义。

Discussion on Intercourse between Heart and Kidney and Harmonization of Fire and Water

Intercourse between heart and kidney and harmonization of fire and water are important concepts in TCM. At present, discussions about them are not clear, but confused. This paper concludes the concepts and meanings about intercourse between heart and kidney and harmonization of water and fire, based on opinions of ancient theories of yin and yang, and five elements. It also expounds the differences and relations about harmonization of yin and yang, harmonization of water and fire, and intercourse between heart and kidney, and puts forward that the concept of intercourse between heart and kidney should be divided into aspect in two parts which are in broad seine and in narrow seine. In broad seine, it indicates kidney qi and heart qi interacts in all aspects; in narrow seine, it indicates the intercourse between heart fire and kidhey water. The pathway, the time and other meanings about intercourse between heart and kidney are also reviewed in this article.