Renying and Cunkou Diagnosis
Version 1.0.0 · Updated 2026-07-30
CORE DEFINITION
Compare the pulse strength of the carotid artery (Renying, representing Yang/external) and the radial artery at the wrist (Cunkou, representing Yin/internal). Normally, they should be equal in strength.
SCAFFOLDING EFFECT
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An internal-external pressure differential gauge. If the Renying pulse is three times stronger than the Cunkou pulse, it indicates extreme external pathogen (Yang excess); if the Cunkou pulse is stronger, it indicates severe internal injury (Yin excess). Use the pressure differential to determine whether the main battlefield is internal or external.
Anchor fast decisions
Based on the theory of traditional Chinese medicine that 'Renying' (common carotid artery) reflects the three Yang (external contraction/six fu organs) and 'Cunkou' (radial artery) reflects the three Yin (internal injury/five zang organs), compare the ratio of pulse strength between the two to determine whether the disease location is superficial or deep, and whether it is excess or deficiency.
MINIMUM ACTION
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