弦

xián

The string quality · xian

Also rendered: the string quality (Literal, and keeps 弦 as a noun) · string-like (Adjectival; the commonest in TCM writing) · wiry (The standard English pulse term) · taut (Loose; describes the feel, not the season)

Reviewed · 2026-09

At a glance

Pinyin
xián
Simplified
弦
Literal
弦 the string of a bow (《說文》: 弓弦也). A pulse that feels like a drawn bowstring: straight, long and taut under the finger.
Shuowen
《說文解字》:弦,弓弦也(段注:弓必有弦而後發,引申為凡直而急者之稱)。

In brief

The spring quality of the pulse, and the pattern after which all five seasonal qualities are stated in chapter 18: 春胃微弦曰平 — slightly string-like, with stomach qi still in it, is the balanced pulse; string much and stomach qi little is liver disease; string alone, with no stomach qi at all, is death; and string appearing inside the autumn pulse foretells illness when spring comes. At the end of the chapter the same image returns stripped of its moderation: the dying liver pulse is 如新張弓弦, like a newly drawn bowstring.

Senses in the classical corpus

1
The spring quality, with stomach qi 春胃微弦曰平
微弦而有胃氣者為平脈
春胃微弦曰平 — Suwen 18
2
Too much of it 弦多胃少曰肝病
弦多而胃少者病在肝
弦多胃少曰肝病 — Suwen 18
3
It alone, with no stomach qi 但弦无胃曰死
但有弦而無胃氣者死
但弦无胃曰死 — Suwen 18
4
Found inside another season's pulse 毛而有弦,曰春病
秋脈見弦,至春而病
毛而有弦,曰春病,弦甚曰今病 — Suwen 18
5
The image at its end 如新張弓弦
死肝脈之急益勁者
死肝脉來,急益勁,如新張弓弦,曰肝死 — Suwen 18

Occurrences in the classics

Passages where the term does real work, with the original, pinyin and English on the same line.

Display
6 passages
素問·平人氣象論 Suwen 18 · 平人氣象論 Read in context →
春胃微弦曰平,弦多胃少曰肝病,但弦无胃曰死,胃而有毛曰秋病,毛甚曰今病。藏真散於肝,肝藏筋膜之氣也。 春胃微弦曰平,弦多胃少曰肝病,但弦无胃曰死,胃而有毛曰秋病,毛甚曰今病。脏真散于肝,肝藏筋膜之气也。
chūn wèi wēi xián yuē píng, xián duō wèi shǎo yuē gān bìng, dàn xián wú wèi yuē sǐ, wèi ér yǒu máo yuē qiū bìng, máo shèn yuē jīn bìng. zàng zhēn sàn yú gān, gān cáng jīn mó zhī qì yě.
In spring, a pulse with stomach qi and a slight string quality is called balanced; if the string is much and the stomach qi little, it is liver disease; if there is nothing but string and no stomach qi, it is death; if there is stomach qi with hair in it, disease is foretold for autumn; if the hair is pronounced, the disease is present now. The true qi of the depots spreads to the liver; the liver stores the qi of the sinews and membranes.
本篇五臟應時之脈,以弦為之首:春胃微弦曰平,弦多胃少曰肝病,但弦无胃曰死;又以其兼見定傳變(胃而有毛曰秋病),終以死肝脈「如新張弓弦」收其象。
素問·玉機真藏論 Suwen 19 · 玉機真藏論 Read in context →
歧伯對曰:春脉者,肝也。東方木也,萬物之所以始生也。故其氣來,耎弱輕虚而滑,端直以長,故曰弦。反此者病。 歧伯对曰:春脉者,肝也。东方木也,万物之所以始生也。故其气来,软弱轻虚而滑,端直以长,故曰弦。反此者病。
Qí bó duì yuē: chūn mài zhě, gān yě. Dōng fāng mù yě, wàn wù zhī suǒ yǐ shǐ shēng yě. Gù qí qì lái, ruǎn ruò qīng xū ér huá, duān zhí yǐ cháng, gù yuē xián. Fǎn cǐ zhě bìng.
Qibo answers: the spring pulse belongs to the liver, the wood of the east, that by which the myriad things first begin to grow. So the qi arrives soft and yielding, light, empty and slippery, straight and long — hence “string.” Whatever is contrary to this is disease.
「故其氣來,耎弱輕虚而滑,端直以長,故曰弦」:本篇弦之義,為春脈之形——耎弱輕虚而滑,端直以長。與第十八篇「春胃微弦曰平,弦多胃少曰肝病,但弦无胃曰死」同條而義別:第十八篇以弦之多少與胃氣之有無判平病死,本篇則先狀弦之形(端直以長,如按琴瑟弦),而後分其太過不及——來實而强者太過,令人善忘、眩冒而巔疾;來不實而微者不及,令人胸痛引背、兩脅胠滿。
素問·宣明五氣 Suwen 23 · 宣明五氣 Read in context →
五脉應象:肝脉絃,心脉鈎,脾脉代,肺脉毛,腎脉石,是謂五藏之脉。 五脉应象:肝脉弦,心脉钩,脾脉代,肺脉毛,肾脉石,是谓五藏之脉。
Wǔ mài yìng xiàng: gān mài xián, xīn mài gōu, pí mài dài, fèi mài máo, shèn mài shí, shì wèi wǔ zàng zhī mài.
The images the five pulses answer to: the liver pulse is string-like, the heart pulse hooked, the spleen pulse intermittent, the lung pulse downy, the kidney pulse stony. These are the pulses of the five viscera.
「肝脉絃」:本篇之弦,為五脉應象之一目,與四時之脈同例;底本作「絃」,弦之異體。與第十八篇「弦」條之以弦為春脈者同條而義別:第十八篇就其應時(春弦夏鈎秋毛冬石)而言,本篇則配之於臟(肝弦心鈎脾代肺毛腎石)——同一脈象,一以時名,一以臟名,而四時之脈本即五臟之脈。
素問·寶命全形論 Suwen 25 · 寶命全形論 Read in context →
歧伯對曰:夫鹽之味鹹者,其氣令器津泄;絃絶者,其音嘶敗;木敷者,其葉發;病深者,其聲噦。 歧伯对曰:夫盐之味咸者,其气令器津泄;弦绝者,其音嘶败;木敷者,其叶发;病深者,其声哕。
Qí bó duì yuē: fú yán zhī wèi xián zhě, qí qì lìng qì jīn xiè; xián jué zhě, qí yīn sī bài; mù fū zhě, qí yè fā; bìng shēn zhě, qí shēng yuě.
Qibo replies: The flavour of salt is salty, and its qi makes the vessel leak its fluid; when a string is about to snap, its note is hoarse and broken; when a tree is spent, its leaves go; when a disease is deep, the voice is retching.
「絃絶者,其音嘶敗」:本篇之絃,不指脈而指琴瑟之絃——三喻之一,以絃將絶則其音嘶敗,喻病深者其聲噦。底本作「絃」,即「弦」之異體,與第二十三篇「肝脉絃」之絃同字而所指不同:彼言脈象,此言樂器。皆讀 xián。「絶」讀 jué;「嘶」讀 sī。
素問·脉要精微論 Suwen 17 · 脉要精微論 Read in context →
上盛則氣高,下盛則氣脹,代則氣衰,細則氣少,濇則心痛,渾渾革至如涌泉,病進而色弊,緜緜其去如弦絶,死。 上盛则气高,下盛则气胀,代则气衰,细则气少,涩则心痛,浑浑革至如涌泉,病进而色弊,绵绵其去如弦绝,死。
shàng shèng zé qì gāo, xià shèng zé qì zhàng, dài zé qì shuāi, xì zé qì shǎo, sè zé xīn tòng, hún hún gé zhì rú yǒng quán, bìng jìn ér sè bì, mián mián qí qù rú xián jué, sǐ.
If the upper part is full, the qi rides high; if the lower part is full, the qi is distended. An intermittent pulse means the qi is failing; a thin pulse means the qi is scant; a rough pulse means pain in the heart. A pulse that comes turbulent and urgent like a gushing spring means the illness is advancing and the complexion is deteriorating; one that departs faint and faint, like a bowstring snapping, means death.
「緜緜其去如弦絶」,言脉去如弓弦驟絶,是胃氣已絶之死脉;弦得其正則應春,失胃氣則絶。
Suwen 74 Suwen 74 · 至真要大論 Read in context →
帝曰:其脉至何如?歧伯曰:厥陰之至,其脉弦;少陰之至,其脉鈎;太陰之至,其脉沈;少陽之至,大而浮;陽明之至,短而濇;太陽之至,大而長。至而和則平,至而甚則病。至而反者病,至而不至者病,未至而至者病,陰陽易者危。帝曰:六氣標本,所從不同,柰何?歧伯曰:氣有從本者,有從標本者,有不從標本者也。帝曰:願卒聞之。 帝曰:其脉至何如?歧伯曰:厥阴之至,其脉弦;少阴之至,其脉钩;太阴之至,其脉沉;少阳之至,大而浮;阳明之至,短而涩;太阳之至,大而长。至而和则平,至而甚则病。至而反者病,至而不至者病,未至而至者病,阴阳易者危。帝曰:六气标本,所从不同,奈何?歧伯曰:气有从本者,有从标本者,有不从标本者也。帝曰:愿卒闻之。
Dì yuē: qí mài zhì hé rú? Qí bó yuē: jué yīn zhī zhì, qí mài xián; shào yīn zhī zhì, qí mài gōu; tài yīn zhī zhì, qí mài chén; shào yáng zhī zhì, dà ér fú; yáng míng zhī zhì, duǎn ér sè; tài yáng zhī zhì, dà ér cháng. Zhì ér hé zé píng, zhì ér shèn zé bìng. Zhì ér fǎn zhě bìng, zhì ér bù zhì zhě bìng, wèi zhì ér zhì zhě bìng, yīn yáng yì zhě wēi. Dì yuē: liù qì biāo běn, suǒ cóng bù tóng, nài hé? Qí bó yuē: qì yǒu cóng běn zhě, yǒu cóng biāo běn zhě, yǒu bù cóng biāo běn zhě yě. Dì yuē: yuàn zú wén zhī.
Huang Di said: what of the coming of their pulses? Qi Bo said: when ceasing yin arrives the pulse is taut; when lesser yin arrives it is hooked; when greater yin arrives it is sunken; when lesser yang arrives it is great and floating; when yang brightness arrives it is short and rough; when greater yang arrives it is great and long. If it arrives in harmony it is level; if it arrives in excess there is illness. What arrives contrary is illness; what arrives not when it should is illness; what arrives before it should is illness; when yin and yang exchange, it is dangerous. Huang Di said: in the tip and root of the six qi what is followed differs — how so? Qi Bo said: there is qi that follows the root, qi that follows both tip and root, and qi that follows neither. Huang Di said: I wish to hear it fully.
**「弦」本篇3見,三見皆在脉之内**;**此段「厥陰之至,其脉弦」,六氣脉至之首**

Compounds built on this term

弦
xián
bowstring
說文:弓弦也
微弦
wēi xián
slightly string-like
春之平脈
胃少
wèi shǎo
little stomach qi
胃氣不足之謂
筋
jīn
sinew
肝藏筋膜之氣,弦為肝脈
弓
gōng
the bow
死肝脈如新張弓弦

How it has been translated

Every rendering below is a decision about which reader is being addressed. There is no neutral option.

Wiseman & Feng 1998stringlikeFixed technical term in that system; wiry is the equivalent in other English pulse writing.
This sitethe string qualityThe chapter is not describing a feel alone; it is naming the quality that belongs to spring, and then grading it by how much stomach qi is left in it. Calling it the string quality keeps it as a noun the text can have more or less of — 弦多胃少, string much and stomach little — where wiry reads as a property a pulse either has or does not, and would leave the chapter's arithmetic of much and little without a subject.

Entry status

Review pending — who reviews this?

2026-09

Search the glossary

Reading path

Guided routes through the corpus, each built on a handful of chapters and their key terms.

See all reading paths