Visceral Toxin / Zang Du
Updated 2026-08-02
INTRODUCTION
English translation pending.
CORE DEFINITION
A classical Chinese medicine diagnostic pattern for lower intestinal bleeding, distinguished in the classical literature from intestinal wind. The core proposition is that stagnant heat or long-accumulated toxin in the viscera discharges downward into the large intestine, producing dark, turbid blood that appears after the stool. The key constraint is the contrast with intestinal wind, where blood is bright red and comes first, marking a shallow, wind-driven injury. Visceral toxin therefore indicates a deeper interior origin and a different treatment.
SCAFFOLDING EFFECT
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- Depth gauge: read blood color and timing as an index of how deep the lesion sits. - Differential split: separate superficial wind injury from deep visceral toxin before treating. - Deep cleansing: direct treatment at accumulated interior heat rather than the surface.
Anchor fast decisions
Heat and stale toxin accumulate in the viscera and discharge into the large intestine, so the blood arrives already darkened and appears after the stool. Because the source sits deep, the surface shows only the downstream discharge. The darker and later the blood, the more interior the origin, which is why the pattern points to clearing deep heat rather than treating a local lesion.
MINIMUM ACTION
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