The Lumbus chapter is the most immediately practical in the whole book. It divides low back pain into ten kinds and gives each its own signs, causes, and formulas — and the distinguishing features are ones a clinician still asks about today: whether the pain moves or stays fixed, whether it worsens at night or after sitting, whether warmth relieves it, and whether it began with lifting. Underneath the ten sits a single organizing claim, stated at the outset: however the pain arrives, the Kidney must first be vacuous before anything can settle there.
The lumbus is the palace of the Kidney 腰爲腎府
腰者, 腎之府, 轉搖不能, 腎將憊矣. 《內經》 ○腰者, 腎之外候, 一身所恃, 以轉移開闔者也. 然諸經貫於腎, 絡於腰脊, 雖外感內傷, 種種不同, 必腎虛而後, 邪能湊之. 故不可純用涼藥, 亦不可純用參芪補氣也. 《入門》
The lumbus is the palace of the Kidney; when it can no longer turn and sway, the Kidney is about to give out (Naegyeong 內經). — The lumbus is the Kidney's outward sign, that on which the whole body relies for turning, shifting, opening, and closing. Now all the channels thread through the Kidney and net the lumbus and spine; and though external contraction and internal damage differ in a hundred ways, **the Kidney must first be vacuous, and only then can an evil gather there.** Therefore one must not use cooling medicines alone, nor supplement the Qi with ginseng and astragalus alone. (Immun 入門)
Clinical note The chapter's governing principle, and it is a claim about susceptibility rather than about cause: cold, damp, strain, and stasis can all produce back pain, but none of them settle in a lumbus that is sound. Hence the closing caution, which is really a warning against two opposite errors — treating every back pain by clearing heat, or treating every back pain by supplementing Qi. Neither addresses the ground the pain is standing on.
Naegyeong 內經 · Immun 入門
Simple medicinals 單方
凡二十二種, 有固陽丹ㆍ煨腎丸. ○磁石, 補腎治腰痛. 火煆醋淬九次爲末, 水飛作丸服. 或入補腎藥皆佳. ○兎絲子, 治腰痛膝冷. 酒煮作末, 溫酒下二錢. 又兎絲子ㆍ牛膝 各一兩, 酒浸五日曝乾爲末, 酒糊丸服. 又兎絲子末二兩, 杜沖蜜灸末一兩, 山藥末酒煮爲糊作丸, 酒下五七十丸, 名固陽丹. ○牛膝, 除腰脊痛. 煮汁飮, 或酒浸服幷良. 又取嫩葉和米醬, 空心作粥服. ○石斛, 治腰痛脚弱. 煮服末服浸酒服皆佳. ○蒺藜子, 治腰脊痛. 爲末蜜丸服, 或作末和酒服幷佳. ○肉蓯蓉, 主腰痛. 作丸服之. ○續斷, 主腰痛. 煮服末服幷佳. 《本草》
Twenty-two kinds in all, including Goyang-dan and Oesin-hwan. — Loadstone supplements the Kidney and treats lumbar pain: calcine in fire and quench in vinegar nine times, powder, levigate in water and take as pills; or added to Kidney-supplementing medicines it is excellent in every case. — Cuscuta treats lumbar pain and cold knees: boil in wine and powder, take 2 don with warm wine. Also cuscuta and achyranthes, 1 nyang each, steeped in wine five days, sun-dried and powdered, bound with a wine paste into pills. Also powdered cuscuta 2 nyang with honey-roasted eucommia powder 1 nyang, bound with a paste of dioscorea powder boiled in wine; 50–70 pills with wine — this is called Goyang-dan. — Achyranthes removes pain of the lumbus and spine: boil and drink the liquid, or steep in wine; both are good. Also take the tender leaves with rice paste and eat as gruel on an empty stomach. — Dendrobium treats lumbar pain and weak legs. — Tribulus treats pain of the lumbus and spine. — Cistanche governs lumbar pain. — Teasel root governs lumbar pain.
Clinical note The first eight of the twenty-two, and the list is worth reading for what recurs rather than for any single entry. Eucommia, psoralea, cuscuta, achyranthes, cistanche, and teasel root appear again and again — through the simples, through the formulas, and through the whole chapter. Those six are the working core of classical low back treatment, and a practitioner who knows only them can build most of what this chapter contains.
Bonchō 本草
萆薢, 主䐴腰痛. 酒浸服之. 又萆薢三兩ㆍ杜沖一兩擣爲末, 空心酒服二錢, 禁食牛肉. ○威靈仙, 治腰痛. 生爲末, 酒調二錢服. 又細末二錢, 猪腰子一隻, 批藥在內, 濕紙裹煨熟, 早晨細嚼熱酒下. ○牽牛子, 治腰痛下冷膿. 半生半炒, 取頭末一兩, 入硫黃一分同硏, 分三服. ○破故紙, 治腰痛神妙. 炒爲末, 酒下二錢. ○五加皮, 治腰脊痛及䐴腰痛. 細剉酒浸服之. ○杜沖, 治腰脊痛, 又治腎勞腰脊攣. 薑汁炒爲末, 空心酒下一錢. ○橘核, 治腰痛. 微炒去殼爲末, 空心酒下二錢. ○胡桃, 治虛損腰痛. 取肉, 和杜沖ㆍ茴香浸酒, 空心服. ○芡仁, 主腰脊痛. 爲末煮粥, 空心服. ○胡麻, 治腰痛. 熬令香爲末, 以酒飮ㆍ蜜湯ㆍ薑湯調下三錢, 日三服, 卽永差. 《本草》
Dioscorea hypoglauca governs wrenched lumbar pain: steep in wine and take. Also 3 nyang with 1 nyang of eucommia, pounded and powdered, 2 don with wine on an empty stomach — beef is to be avoided. — Clematis treats lumbar pain: powder raw and take 2 don stirred into wine. Also finely powdered 2 don packed inside a pig's kidney, wrapped in damp paper and roasted through, chewed fine in the early morning and washed down with hot wine. — Morning glory seed treats lumbar pain with cold pus descending. — Psoralea treats lumbar pain with divine efficacy: dry-fry, powder, and take 2 don with wine. — Acanthopanax treats pain of the lumbus and spine, and wrenched lumbar pain. — Eucommia treats pain of the lumbus and spine, and also Kidney taxation with the lumbus and spine drawn tight: ginger-juice-fried and powdered, 1 don with wine on an empty stomach. — Tangerine seed treats lumbar pain. — Walnut treats vacuity detriment lumbar pain: take the flesh and steep in wine with eucommia and fennel. — Euryale seed governs pain of the lumbus and spine. — Sesame treats lumbar pain: roast until fragrant, powder, and take 3 don stirred into wine, honey water, or ginger decoction, three times daily — and it is permanently cured.
Clinical note The middle group, and two things stand out. The pig's kidney appears again as a delivery vehicle — the herb packed inside it, wrapped and roasted — which is the chapter's favorite preparation and rests on the doctrine that like reaches like. And psoralea gets the chapter's strongest endorsement, *divine efficacy*, for a preparation that could hardly be simpler: dry-fry, powder, take with wine.
Bonchō 本草
鹿茸, 主腰脊痛. 酥灸紫色去毛爲末, 每日空心溫酒下一錢. ○鹿角, 除腰脊痛. 熬黃爲末, 溫酒一盃調一錢, 日二服. ○羊脊骨, 治腰痛轉搖不得. 脊骨一具, 槌碎爛煮, 和五味食之, 因飮酒少許. ○黃狗肉, 煖腰膝止痛. 取淨肉, 和五味煮熟, 空心食之. ○猪腎, 治腎虛腰痛. 取腰子一枚薄批, 以椒鹽末淹過, 糝杜沖末三錢在內, 包以荷葉, 或濕紙慢火煨熟, 以酒嚼下, 名曰煨腎丸. ○又方, 童便二盞ㆍ好酒一盞ㆍ腰子一對, 盛磁缸, 黃泥封口. 日晚以慢火養熟至中夜, 待五更初以火溫之, 發甁飮酒食腰子. **此以血養血, 絶勝金石草木之藥.** 《本草》
Deer antler governs pain of the lumbus and spine. — Deer horn removes pain of the lumbus and spine. — Sheep spine treats lumbar pain with inability to turn and sway: take one whole spine, break it up and boil until tender, season with the five flavors and eat it, drinking a little wine with it. — Yellow dog meat warms the lumbus and knees and stops pain. — Pig's kidney treats Kidney vacuity lumbar pain: take one kidney, slice it thin, salt it through with pepper-salt powder, sprinkle 3 don of powdered eucommia inside, wrap in a lotus leaf or damp paper and roast through over a slow fire; chew it down with wine — this is called Oesin-hwan. — Another method: two cups of child's urine, one cup of good wine, and a pair of kidneys, put into a porcelain crock sealed at the mouth with yellow clay; from evening cook slowly through to midnight, and at the first watch before dawn warm it with fire, open the vessel, drink the wine and eat the kidneys. **This nourishes blood with blood, and far surpasses medicines of metal, stone, herb, or tree.**
Clinical note The animal simples, and they close with the chapter's boldest claim: *this nourishes blood with blood, and far surpasses medicines of metal, stone, herb, or tree.* The reasoning is the sympathetic one that runs through this whole chapter — kidney treats kidney, spine treats spine — and here it is stated as a ranking, with food-medicine placed above the entire mineral and botanical pharmacy. Whatever one makes of the theory, the practical instruction is familiar enough: a person with a worn-out back should eat well, and eat the sort of food that rebuilds.
Bonchō 本草
Acupuncture and moxibustion 鍼灸法
腰痛, 灸腎兪三七壯卽差. 《綱目》 ○腰曲不能伸, 鍼委中出血立愈. 《丹心》 ○腰背痛, 以鍼決膝腰句畫中靑赤絡脉出血便差. 《得效》 ○腰痛不得俛仰, 令患人正立, 以竹拄地度至臍斷竹, 乃以度背脊, 灸竹上頭盡處, 隨年壯. 灸訖, 藏竹勿令人知. 《資生》
For lumbar pain, moxa BL23 Sinsu twenty-one cones and it is put right (Gangmok 綱目). — Where the lumbus is bent and cannot be straightened, needle BL40 Wijung to let blood and it is cured at once (Dansim 丹心). — For pain of lumbus and back, open with a needle the blue and red network vessels within the crease at the knee and lumbus, let blood, and it is put right (Deukhyo 得效). — For lumbar pain with inability to bend forward or lean back: have the patient stand upright, set a bamboo rod on the ground and measure up to the navel, cut the bamboo there, then measure that length up the spine from below and moxa at the point where the top of the bamboo ends, as many cones as the patient's years. When the moxa is done, hide the bamboo and let no one know of it. (Jasaeng 資生)
Clinical note BL40 Wijung for a back that will not straighten is among the most-used points in all of acupuncture, and here it is with the classic instruction — needle to let blood. The bamboo measurement is the chapter's most charming entry: the patient's own navel height, transferred to the spine, locates the point. Measuring by the body rather than by a ruler is the standard classical method, and the final instruction to hide the bamboo afterward is pure folk practice and preserved here as such.
Gangmok 綱目 · Dansim 丹心 · Deukhyo 得效 · Jasaeng 資生
神仙灸法, 治腰痛, 灸曲䐐兩文頭左右脚四處各三壯. 每灸一脚, 二火齊下, 艾炷纔燒至肉, 初覺痛, 便用二人兩邊齊吹至火滅. 午時着灸, 至人定已來, 藏府自動一二行, 或轉動如雷聲, 其疾立愈. 此法神效. 《綱目》 ○腎虛腰痛, 取腎兪ㆍ人中ㆍ委中ㆍ肩井. ○挫閃腰痛, 取尺澤(勿灸)ㆍ委中ㆍ人中ㆍ陽陵泉ㆍ束骨ㆍ崑崙ㆍ下髎ㆍ氣海. ○腰痛, 崑崙ㆍ委中出血. 又取腎兪ㆍ中膂兪ㆍ腰兪. ○腰强痛, 命門ㆍ崑崙ㆍ志室ㆍ行間ㆍ復溜. 《綱目》
The Divine Immortal moxa method treats lumbar pain: moxa three cones at each of four places, at the two ends of the crease behind the knee, left leg and right. For each leg the two fires are set down together; as soon as the moxa cone burns down to the flesh and pain is first felt, two people blow from either side together until the fire is out. Apply the moxa at midday, and by the time people have settled for the night the bowels stir of themselves once or twice, or turn over with a sound like thunder — and the illness is cured at once. This method has divine efficacy (Gangmok 綱目). — For Kidney vacuity lumbar pain: BL23 Sinsu, GV26 Insu, BL40 Wijung, GB21 Gyeonjeong. — For wrenching strain lumbar pain: LU5 Cheokdaek (do not moxa), BL40 Wijung, GV26 Insu, GB34 Yangneungcheon, BL65 Sokgol, BL60 Gonryun, BL34 Haryo, CV6 Gihae. — For lumbar pain: bleed BL60 Gonryun and BL40 Wijung; also BL23 Sinsu, BL29 Jungnyeosu, GV2 Yosu. — For lumbar rigidity and pain: GV4 Myeongmun, BL60 Gonryun, BL52 Jisil, LR2 Haenggan, KI7 Bongnyu.
Clinical note The point prescriptions at the end are the practical core, and they are still teachable: Sinsu and Wijung for the deficient back, Wijung and Insu with the ankle points for the acute wrench, and the note **do not moxa LU5** — one of the chapter's few explicit contraindications. The Divine Immortal method above is worth reading for the choreography alone: two fires lit together, two people blowing them out in unison the moment pain is felt, applied at noon so that the effect arrives by nightfall.
Gangmok 綱目