What is Black Coating?

Hēi Tái · 黑苔 · Tongue Diagnosis

A tongue coating that is dark brown or black, usually indicating extreme Heat consuming Yin, severe Cold, or prolonged illness.

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Black Coating belongs to the Tongue Diagnosis group of Traditional Chinese Medicine terminology. Browse the full TCM glossary or the related terms below.

Related Tongue Diagnosis terms

Frequently asked questions

What is Black Coating in Traditional Chinese Medicine?

A tongue coating that is dark brown or black, usually indicating extreme Heat consuming Yin, severe Cold, or prolonged illness.

What category does Black Coating belong to?

Black Coating is part of the Tongue Diagnosis group of TCM concepts.

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.