yīn fèi
Also rendered: Loss of voice with palsy (this site; the two halves are kept apart in English, so that the reader sees one illness and not two) · Mute palsy (the compact clinical name of the later books)
Reviewed · 2026-10-01
At a glance
The illness chapter 49 names when depletion within is carried as far as inversion: the voice goes and the limbs fail. The chapter calls it depletion of the kidney, because the lesser yin vessel no longer reaches upward to the root of the tongue. The base text writes 俳 from 人; the received text writes 痱 from 疒, and the two are read alike as fèi.
Passages where the term does real work, with the original, pinyin and English on the same line.
Every rendering below is a decision about which reader is being addressed. There is no neutral option.
| This site | loss of voice with palsy | the chapter's own two symptoms, in the chapter's own order — tongue first, limbs second |
| Later medicine | 瘖痱 yīn fèi | from the Song formularies onward the name is written 瘖痱 and treated with formulas that supplement the kidney |
| Modern editions | aphasia and paralysis | the clinical pairing; it names the deficits but loses the kidney mechanism the chapter gives |
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Reading path
Guided routes through the corpus, each built on a handful of chapters and their key terms.
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