Distinguishing three systems rather than grouping them all as “Chinese medicine”
Classical theory, contemporary education, and bodily examination
This page distinguishes what is often grouped together as Chinese medicine intoClassical Chinese Medicine、modern Traditional Chinese Medicine (TCM)、Japanese Kampo as three systems. All belong to East Asian medicine, but differ in formation period, social position, theory-building method, and relationship to practice. MLMN is an original framework proposed by this project to organize multilayer clinical reasoning while respecting those differences.
Classical theory formed from the Western Han through Qing periods: the theoretical source of East Asian medicine, grounded in Suwen, Lingshu, Nanjing, Shanghan Lun, and Jingui Yaolue and developed through the four Jin–Yuan masters and warm-disease schools.
A twentieth-century Chinese system that organized, standardized, and taught classical medicine at state level, centered on pattern differentiation and reconstructed for coexistence with modern medicine.
A medical system reconstructed in Japanese practice from the Edo period onward, bringing Chinese theory back to formula patterns, abdominal diagnosis, toxin, and bodily findings, with the Koho tradition central to this account.
A major theoretical foundation is the Huangdi Neijing (Suwen and Lingshu), formed between the Warring States and Eastern Han periods. The Shanghan Lun and Jingui Yaolue associated with Zhang Zhongjing in the late Eastern Han organized clinical systems for acute febrile and miscellaneous diseases. Clinical and theoretical developments accumulated through the Tang, Song, Jin, Yuan, Ming, and Qing.
Classical Chinese medicine is sometimes simplified as an elegant theory, but is actually a composite system of interacting axes that modify and reinforce each other.
The Song, Jin, and Yuan periods saw physicians develop distinctive pathological perspectives: Liu Wansu's six-qi fire–heat theory, Zhang Zihe's sweating/vomiting/purging methods, Li Dongyuan's spleen–stomach damage theory, and Zhu Danxi's ministerial-fire theory. In the Ming–Qing development described here, Wu Jutong's Wenbing Tiaobian reorganizes six-conformation reasoning through a grid of defense–qi–construction–blood and upper–middle–lower jiao. These perspectives may conflict, but the conflicts themselves carry information and may reflect attention to different pathological phases.
TCM is the modern system that nationally organized, standardized, and taught the diverse heritage of classical medicine in twentieth-century China. After the founding of the People's Republic, alongside the organization of education, healthcare, and research institutions, classical medicine was reconstructed around Pattern Differentiation and Treatment to coexist with modern Western medicine.
TCM does not reject classical medicine. It is an organizational and educational system making accumulated classical knowledge usable within contemporary healthcare. Standardization also abstracts away some regional, school, and historical diversity. This is presented not as a criticism but as a consequence of the purposes of education and standardization.
Japan received Chinese medicine continuously from the eras of missions to Sui and Tang China. In the Edo period, a sustained movement of clinical examination became prominent, bringing imported theory back to bodily findings, abdominal signs, formula patterns, and toxin and reopening dialogue with theory from there. This is a tradition often called Japanese Kampo.
Physicians of the late seventeenth and eighteenth centuries known as the Koho school emphasized a return to Shanghan Lun and direct observation of bodily findings in response to the abstract theory-building of the then-mainstream Jin–Yuan/later-formula tradition. This was not merely rejection of later formulas or opposition to theory, but a clinical movement seeking to reconnect theory and bodily findings where they had become separated.
Japanese Kampo did not simply reject Chinese deductive theory. In bringing it into the body before the practitioner, it crystallized into concrete concepts: formula patterns linking prescriptions and findings, abdominal diagnosis, and toxin as palpable pathological convergence. Abdominal diagnosis developed as a tactile means of checking abstract theory through bodily findings. For details, see Abdominal Diagnosis Archive for reference.
Classical Chinese medicine is the theoretical source of East Asian medicine; modern TCM standardizes that heritage within current healthcare and education; Japanese Kampo received Chinese medicine and reconstructed it through bodily examination in Japanese practice. They are not mutually exclusive, but systems formed under different purposes and social conditions that can inform one another.
| Axis | Classical Chinese Medicine | modern Traditional Chinese Medicine (TCM) | Japanese Kampo |
|---|---|---|---|
| Main Period | Western Han through Qing | Twentieth Century Onward | Edo Period Onward |
| Central Concepts | Yin–yang, five phases, zang-fu, channels, six conformations, and sanjiao | Pattern Differentiation and Treatment | Formula Patterns, Abdominal Diagnosis, and Toxin |
| Social Position | Transmission through classical literature | State institutions and international education | Japanese clinical tradition |
| Typical Beginner's Gateway | Original classics and commentaries | Textbooks and international qualification curricula | Formula patterns, abdominal diagnosis, and Koho literature |
The project's proposed MLMN Theory is an original multilayer framework developed by Koichi Ishihara to organize East Asian clinical reasoning while recognizing these differences. By placing classical Chinese theoretical structures, TCM educational organization, and Japanese Kampo bodily examination across layers and connecting them as pathogenesis pathways, it aims to describe reasoning between abstract theory and concrete findings without overlooking information.