Nèiwài shāng biànhuò lùn 內外傷辯惑論
Discriminating the Confusion Between Internal and External Damage by 李杲 (Lǐ Gǎo, zì Míngzhī, hào Dōngyuán lǎorén, 1180–1251, of Zhēndìng, 元)
About the work
Lǐ Gǎo’s foundational theoretical work, in 3 juan, completed in 1231 (the dīngwèi of his preface = Jīn Zhèngdà 9, but actually the latest dīngwèi before his preface dating; modern scholarship places the preface in 1247 / Yuán Yuánfú 4 dīngwèi, with the work completed 16 years earlier in 1231). The work systematically distinguishes internal damage (內傷, from the spleen-and-stomach disorders, dietary irregularity, and qi-deficiency) from external damage (外傷, from external pathogenic invasion of cold, heat, and wind) — a distinction critical to therapeutic strategy, since the two are clinically often confused but require fundamentally different treatments. Lǐ Gǎo’s principal therapeutic strategy for internal-damage syndromes is supplementing-the-spleen and elevating-clear-yang (bǔ tǔ shēng jīn shēngqīng jiàngzhuó 補土生金升清降濁), embodied in his signature prescription the Bǔzhōng yìqì tāng 補中益氣湯 (Center-Tonifying Qi-Boosting Decoction).
Tiyao
Nèiwài shāng biànhuò lùn, 3 juan, by Lǐ Gǎo of the Jīn. Gǎo, zì Míngzhī, self-styled Dōngyuán lǎorén (Old Man of the Eastern Plain), was a man of Zhēndìng. He once obtained office through monetary contribution as Tax Inspector of Jǐyuán. Examining Yán Jiān’s Dōngyuán lǎorén zhuàn: “Gǎo died in xīnhài year, aged 72.” So he was born in Shìzōng Dàdìng 20 (gēngzǐ = 1180); at the Jīn collapse he was 55; he then lived 17 years under the Yuán before dying. The old base copy sometimes attributes him to the Yuán dynasty, and the Yuán shǐ also lists him in the Fāngjì zhuàn.
Originally Gǎo’s mother fell ill, was attended by various physicians who treated her chaotically, and died — none knowing what the symptom-pattern was. Gǎo, in self-reproach for his ignorance of medical principle, paid a thousand pieces of gold to apprentice with Zhāng Yuánsù of Yìzhōu, and inherited his master’s full method; in fame, he came to surpass Yuánsù — the great founder of his medical school.
This compilation elucidates that internal-damage symptoms have outward-resemblance to external-pathogen symptoms; it discriminates yīn and yáng, cold and heat, surplus and deficiency — and the principal teaching is that the spleen-and-stomach should be the focus. He therefore created the Bǔzhōng yìqì tāng, especially for cases of dietary irregularity and exhaustion-fatigue causing weak-person colds: the method takes “supplement the earth to generate the metal, raise the clear and lower the turbid” (補土生金升清降濁) as the principle, securing the yīn-and-yáng generative-and-transformative meaning. His elucidation of medical principle is profound and subtle.
At the head is his own preface dated dīngwèi. The preface says “this discussion has been on the high shelf for sixteen years”; counting back the chánglì (long-calendar), the work was therefore completed in Jīn Āizōng’s Zhèngdà 9 (xīnmǎo = 1231).
(Respectfully verified, 9th month of Qiánlóng 43 [1778]. Chief Compilers Jì Yún, Lù Xīxióng, Sūn Shìyì; Chief Collator Lù Fèichí.)
Abstract
Composition window: 1231 (initial composition under Jīn) to 1247 (publication preface under Yuán). Lǐ Gǎo’s preface dates his work-completion to 16 years before the dīngwèi preface — placing the original composition in Jīn Zhèngdà 9 (1231). The 1247 dīngwèi preface (Yuán Yuánfú 4) marks the publication. The catalog dynasty 元 reflects publication date.
The work’s significance:
(a) The internal-vs-external damage distinction: Lǐ Gǎo’s most lasting contribution, distinguishing internal damage (from spleen-and-stomach pathology, dietary irregularity, and exhaustion) from external damage (from environmental pathogenic invasion). The two disease-categories produce superficially similar symptoms but require fundamentally different therapeutic strategies — the former tonifying-and-supplementing, the latter expelling-and-clearing. The distinction is foundational to all subsequent Chinese clinical reasoning.
(b) The Spleen-and-Stomach school: Lǐ Gǎo’s most influential institutional contribution, the school that emphasizes the spleen-and-stomach (píwèi) as the source of the body’s qì and blood, and treats spleen-and-stomach disorder as the root of most internal disease. The school’s pharmacotherapeutic emphasis on tonifying the center (補中) and raising the clear-yang (升清) was the principal JīnYuán counterweight to Liú Wánsù’s cold-cooling and Zhāng Cóngzhèng’s purgative-attack schools.
(c) The Bǔzhōng yìqì tāng: Lǐ Gǎo’s signature prescription, still widely used in modern TCM. The prescription’s combination of huángqí 黃耆, rénshēn 人參, báizhú 白朮, gāncǎo 甘草, dāngguī 當歸, chénpí 陳皮, shēngmá 升麻, and cháihú 柴胡 is the canonical formulation for spleen-deficiency-and-clear-yang-fall syndrome.
(d) The JīnYuán transition context: Lǐ Gǎo’s career spans the dramatic JīnYuán transition (1234), and his clinical observations are partly shaped by that period of war, dislocation, and famine, in which spleen-and-stomach exhaustion-syndromes were epidemic. The school’s diagnostic emphasis is partly a clinical response to those conditions.
The catalog title 內外傷辯惑論 (with the slip 內外傷寒辯惑論 in the SKQS source-print Title line) is to be read 內外傷辯惑論 (without the 寒); the catalog meta is correct.
Translations and research
- Yang Shou-zhong, trans. Treatise on the Spleen and Stomach: A Translation of the Pi Wei Lun, Boulder: Blue Poppy Press, 2004. Translation of Lǐ Gǎo’s Pí-wèi lùn; companion to this work.
- Mǎ Bóyīng 馬伯英, Zhōngguó yī-xué wén-huà shǐ 中國醫學文化史, 2 vols., Shànghǎi: Shànghǎi Rénmín, 2010 (extensive treatment of Lǐ Gǎo).
- Unschuld, Paul U. Medicine in China: A History of Ideas, Berkeley: University of California Press, 1985.
- Liào Yùqún 廖育群, Yīxué yǔ chuántǒng wénhuà 醫學與傳統文化, Tianjin: Bǎihuā Wényì, 2002 (chapter on the Jīn-Yuán four masters).
- Chen, Yongxia 陳永霞, Lǐ Gǎo xué-shù sī-xiǎng yán-jiū 李杲學術思想研究, Beijing: Rénmín Wèishēng, 2005.
Other points of interest
The internal-vs-external damage distinction articulated in this work is one of the more influential Chinese medical-theoretical contributions. It addresses a clinical problem — the surface-similarity of internal-deficiency symptoms to external-pathogen symptoms — that all medical traditions encounter, and provides a precise diagnostic and therapeutic discrimination. The LǐGǎo distinction remains foundational in modern TCM clinical reasoning.
The Bǔzhōng yìqì tāng prescription is one of the most prescribed formulations in modern Chinese medical practice for spleen-deficiency syndromes, post-illness fatigue, prolapse-of-organs, chronic diarrhea, and immune-deficiency conditions. Its 800-year continuous clinical history is testament to Lǐ Gǎo’s enduring contribution.