Skin Water / Pi Shui
Updated 2026-08-01
INTRODUCTION
English translation pending.
CORE DEFINITION
Skin water (pi shui) is a pattern in the classical Chinese medicine taxonomy of edema in which fluid accumulates within the skin and flesh rather than in the lung above or the kidney below. Pressing the skin leaves a pit, and the patient feels heaviness without aversion to wind. The pattern sits between surface and interior, so treatment frees yang and drains water, classically with Stephania and Poria decoction, to guide the trapped fluid away.
SCAFFOLDING EFFECT
Reduce cognitive load
- Flood location: read where the water sits to decide which drainage route actually applies - Not lung, not kidney: recognize fluid trapped between the two obvious sites and treat the middle layer - Drain design: open yang and route the fluid out instead of forcing it downward
Anchor fast decisions
Fluid accumulates in the tissue layer when the pathways that normally distribute and eliminate it turn sluggish, so it pools where nothing moves it. Because the fluid is not lodged in the lung above or the kidney below, neither upper dispersing nor lower warming alone reaches it. Freeing yang opens the surface pathways, and draining water gives the pooled fluid an exit, so the two together clear the middle layer. A pit left by pressure shows the fluid is interstitial rather than inside a cavity.
MINIMUM ACTION
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- baike.baidu.comhttps://baike.baidu.com/item/%E7%9A%AE%E6%B0%B4verified
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