Meridian–Viscera Correlationship

Meridians and collaterals are considered to be objective entities in the human body. Meridian theory is a foundational component of traditional Chinese medicine (TCM). In traditional acupuncture, doctors are guided by the theory of meridian–viscera correlativity (MVC). In fact, MVC theory is multifaceted and explains the physiology of organ systems, the pathophysiology of disease processes, and the potential management of illness. With respect to physiology, the function of the meridians and their corresponding organs are related closely. Secondly, pathological changes in an organ system can be reflected in the associated meridian, and disease processes can be deduced by the analysis of affected meridians. Based on studies of meridian theory, we published the view that correlation between meridians and viscera is the essential concept that should guide future research. It is our belief that ultimately meridian theory will be the key to understanding TCM. In this chapter, we discuss the basic concepts of meridian theory, how these concepts apply to clinical situations, current understanding of MVC, future directions for MVC research, and the perceived barriers to furthering our understanding.