Traditional Chinese Medicine (TCM) is a medical tradition whose theoretical framework developed over roughly two millennia, with the foundational texts — particularly the Huang Di Nei Jing (Yellow Emperor’s Inner Classic) — compiled and revised from the Han dynasty onward (Unschuld, 2003). TCM is not a single system but a family of overlapping practices: herbal medicine, acupuncture, moxibustion, dietary therapy, qigong, and tui na (therapeutic bodywork). What unifies them is a shared theoretical vocabulary for describing the body, its pathologies, and its relationship to its environment.
That vocabulary is not reducible to the vocabulary of Western biomedicine. TCM does not describe the body as a collection of organs and tissues but as a pattern of functional relationships — flows, balances, and transformations among interdependent systems. The liver in TCM is not the anatomical organ in the right upper quadrant; it is a functional system governing the smooth flow of qi, the storing of blood, and the regulation of emotional and somatic tension. Whether the TCM liver and the biomedical liver refer to the same thing is not a question TCM’s framework is built to answer, and forcing the correspondence distorts both (Kaptchuk, 2000).
The theoretical core rests on several interlocking conceptual systems:
- Jing, Qi, Shen — the Three Treasures (san bao 三寶), three layers of vitality from stored substrate through circulating energy to reflective awareness.
- Yin and Yang (陰陽) — complementary aspects of any phenomenon: rest and activity, cold and heat, interior and exterior, depletion and excess. Not substances but a framework for describing dynamic balance.
- Wu Xing (五行) — the Five Phases (wood, fire, earth, metal, water), a classification system describing cycles of generation and restraint among functional systems. Not elements in the Greek sense but phases of transformation.
- Meridians (jing luo 經絡) — channels through which qi circulates, connecting the body’s functional systems and linking interior organs to the surface.
- Zang-Fu (臟腑) — the organ-function systems (five yin organs, six yang organs), defined by their functional relationships rather than anatomical location.
Nathan Sivin observed that TCM’s theoretical framework is a system of correspondences: heaven, earth, and the human body are understood through the same categorical structures (Sivin, 1987). This makes TCM’s categories diagnostic rather than ontological — they describe how a situation presents, not what the world is made of.
For this research program, TCM is relevant in two ways. First, its diagnostic vocabulary — particularly the Jing/Qi/Shen distinction — provides a framework for describing layers of system vitality that has no direct equivalent in Western systems theory. A system can have substance (Jing) and operational activity (Qi) while lacking reflective capacity (Shen). Western vocabulary names dysfunction (breakdown, failure) or function (operation, execution) but has no standard term for the intermediate condition of animation without adaptivity. The TCM vocabulary does.
Second, TCM’s classification systems (Yin-Yang, Wu Xing, Zang-Fu) are examples of knowledge organization that function differently from Western formal ontologies. They are diagnostic and relational rather than taxonomic: they describe configurations and tendencies, not fixed types. This makes them relevant as a contrast case to the formal ontologies of the Semantic Web and biomedical informatics — systems where rigidity is a feature, not a limitation.
Entries
Theoretical frameworks
- The Three Treasures in Clinical Practice — Jing, Qi, and Shen as layers of vitality: clinical assessment, deficiency patterns, and bidirectional dependencies
- The Five Phases (Wu Xing) — cycles of generation and restraint among functional systems: correspondences, clinical applications, and pathological cycles
- Zang-Fu (Organ-Function Systems) — the functional organ systems defined by relationship, not anatomy
- Meridians (Jing Luo) — the channels through which Qi circulates
Clinical methods
- Pattern Diagnosis (Bian Zheng) — the Eight Principles, Zang-Fu patterns, and the four examinations
- Etiology and Pathology — how disease arises: the six external causes, seven emotions, and pathological progression
Therapeutic modalities
- Acupuncture — needling, moxibustion, and related manual therapies
- Herbal Medicine (Zhong Yao) — formula-based prescribing organized by nature, taste, and meridian tropism
Related
- Introduction to Traditional Chinese Medicine — introductory curriculum lesson
- Three Treasures (San Bao) — Jing, Qi, Shen as a diagnostic framework
- Psychology — Shen connects TCM to psychological concepts; disturbed Shen is treated through the organ-function system rather than as a separate mental health category
- Pain — TCM’s “where no free flow, there is pain” parallels pain neuroscience’s description of central sensitization
- Somatics — the body as experienced from within
- Reiki — a healing practice with different theoretical origins