Quick Facts
| Latin Name | Bombycis Faeces |
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| Chinese Name & Pinyin | 蠶沙 · Can Sha |
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| Medicinal Part | Zoological substances |
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| Efficacy Category | Wind-damp dispelling |
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| Botanical Origin | The dried feces of the larva of Bombyx mori Linnaeus (Bombycidae). |
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| Nature & Flavour | Sweet, Acrid; Warm |
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| Channels Entered | Liver, Spleen, Stomach |
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What Is Can Sha?
Can Sha (Silkworm Excrement) is a medicinal herb of Traditional Chinese Medicine.
Produced in silkworm-rearing regions of China; main production in Jiangsu, Zhejiang, Sichuan, Guangdong.
Nature & Flavour: Sweet, Acrid; Warm
Channels Entered: Liver, Spleen, Stomach
Can Sha: Materia Medica Profile
Identification & Quality Standard
Bombycis Faeces
Botanical Origin
The dried feces of the larva of Bombyx mori Linnaeus (Bombycidae).
Production Regions
Produced in silkworm-rearing regions of China; main production in Jiangsu, Zhejiang, Sichuan, Guangdong.
Quality Requirements
Superior material is dry, dark brown, even and free of mildew.
Macroscopic Features
Short oval or cylindrical granules, 2~5 mm long, 1.5~3 mm diameter; externally dark brown or brownish-black, rough, with 6 subtle longitudinal ridges; light, brittle; fractured granular; faint odor; slightly sweet and pungent taste.
Traditional TCM Properties
Sweet, Acrid; WarmLiverSpleenStomach
Traditional Functions
Dispels wind-dampness, harmonizes stomach and transforms dampness.
How Can Sha Is Used in TCM
In the Chinese materia medica, Can Sha is classified among the Wind-damp dispelling herbs.
Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.
