What is Yin?

Yīn · 阴 · Fundamental Theory

Represents the feminine, dark, cold, passive, internal, descending, and substantial aspects of phenomena. In the body, it relates to blood, body fluids, organs like the Kidneys and Liver, and the lower parts of the body.

Category

Yin belongs to the Fundamental Theory group of Traditional Chinese Medicine terminology. Browse the full TCM glossary or the related terms below.

Related Fundamental Theory terms

BloodBody Fluids (Jin-Ye)Controlling Cycle (Ke Cycle)EarthFireFive Phases TheoryGenerating Cycle (Sheng Cycle)HolismInsulting Cycle (Wu Cycle)Interdependence of Yin and YangJing (Essence)Meridians (Jing-Luo)MetalMutual Opposition of Yin and Yang

Frequently asked questions

What is Yin in Traditional Chinese Medicine?

Represents the feminine, dark, cold, passive, internal, descending, and substantial aspects of phenomena. In the body, it relates to blood, body fluids, organs like the Kidneys and Liver, and the lower parts of the body.

What category does Yin belong to?

Yin is part of the Fundamental Theory 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.