The mouth and lips in Chinese medicine
The qi of the Spleen communicates with the mouth. When the Spleen is in harmony, the mouth can tell the five grains apart.Yellow Emperor Inner Classic, Lingshu, chapter 17 Maidu
The Suwen chapter Wuzang Shengcheng writes that the Spleen is matched with the flesh and shows in the lips. So pale lips are Spleen blood deficiency, dry cracked lips are Spleen yin deficiency or Stomach heat, and weeping sores are Spleen damp heat. A bland mouth with no appetite is Spleen qi weakness, a sweet sticky taste is Spleen dampness, bad breath is Stomach heat. Drooling in sleep is also referred to a Spleen too weak to hold fluids.
The mouth and lips in Western medicine
The spleen has nothing to do with the mouth. But if Spleen means digestion and absorption, Western medicine meets Chinese medicine here very closely. The lining of the mouth renews every few days, so deficiencies appear here first. Cracked corners go with lack of iron, riboflavin and zinc. A smooth red tongue goes with lack of B12 and folate. Recurrent mouth ulcers are an early sign of Crohn disease and coeliac disease. Pale lips mean anaemia. Reduced taste goes with zinc deficiency. All of it is a matter of gut and nutrition, exactly the territory Chinese medicine calls the Spleen.
Where they meet and where they part
| Area | Chinese medicine | Anatomy | Match |
|---|---|---|---|
| Pale lips | Spleen blood deficiency | Anaemia, often from poor absorption or blood loss | Matches |
| Cracked corners, mouth sores | Spleen damp heat, Stomach fire | Iron, B vitamin and zinc deficiency, inflammatory bowel disease | Close |
| The mouth knows the five flavours | Spleen qi in harmony | Taste buds, zinc, cranial nerves VII and IX | Close |
Related pages
Questions and answers
Do frequent mouth ulcers mean internal heat?
Chinese medicine usually calls it accumulated heat of Spleen and Stomach or yin deficiency with flaring fire. Western medicine notes that ulcers which recur often, last long or come with weight loss or abdominal pain need a bowel examination, as they may signal Crohn or coeliac disease.
Explore the atlas
Sources
- Yellow Emperor Inner Classic, Lingshu, chapter 17 Maidu. Suwen, chapter 10 Wuzang Shengcheng.
- Lankarani K. B. et al., Oral manifestation in inflammatory bowel disease: a review, World Journal of Gastroenterology, 2013. pubmed.ncbi.nlm.nih.gov/24379574/
- 3D model: Z-Anatomy (CC BY-SA 4.0), built on BodyParts3D, The Database Center for Life Science. Meridian paths are drawn by the atlas on the skin of this model as an approximate illustration, not a measured atlas of points.
Compiled and reviewed by Master Ung Khiem
© 2026 Master Ung Khiem · UK MASTER CORP. The text of this library is protected by copyright. Reposting all or part of it without written permission is not allowed. Short quotations must credit the source and link back to the original page. The 3D model is from Z-Anatomy and BodyParts3D (The Database Center for Life Science) under the CC BY-SA 4.0 license.
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Cite this page
Ung Khiem, Master. (2026). The Mouth, Lips and Spleen: opening, taste and nutrition. Body and Five Elements Atlas, UK Master Academy. https://thayungkhiem.vn/en/nhan-the-ngu-hanh/mieng
@misc{ungkhiem_2026_mieng,
author = {Ung Khiem},
title = {The Mouth, Lips and Spleen: opening, taste and nutrition},
year = {2026},
howpublished = {Body and Five Elements Atlas, UK Master Academy},
url = {https://thayungkhiem.vn/en/nhan-the-ngu-hanh/mieng},
note = {Accessed 2026-11-01}
}Last updated November 1, 2026 · Revision history