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HerbBombycis Faeces

蚕沙

Cán Shā

Silkworm Droppings

The dried droppings of Bombyx mori larvae (Bombycidae). Enters the Liver, Spleen, and Stomach channels. Excels at dispelling wind-dampness and harmonizing the Stomach to transform turbidity, a key herb for vomiting and diarrhea with leg cramps due to damp turbidity obstructing the center.

Actions · 功效

祛风除湿Dispel wind and eliminate dampness
和胃化浊Harmonize the Stomach and transform turbidity
活血通经Invigorate blood and unblock the channels

Indications · 主治

风湿痹痛Wind-damp impediment pain
吐泻转筋Vomiting and diarrhea with leg cramps
风疹瘙痒Urticaria with itching

Dosage · 用量

Per day · decoction · non-pregnant adult

5–15 g

布包煎

Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.

Draft

Footnotes · 引用

[1]Mingyi Bielu (Supplementary Records of Famous Physicians)
[2]Bencao Gangmu (Compendium of Materia Medica)

Permalink · CC BY-SA 4.0

Cite this entry

@misc{bencaodian-can-sha,
  author       = {{Bencaodian Editorial}},
  title        = {Cán Shā 蚕沙 (Silkworm Droppings) — Bombycis Faeces},
  year         = {2026},
  howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
  url          = {https://bencaodian.org/en/herbs/can-sha},
  urldate      = {2026-04-16},
  note         = {CC BY-SA 4.0}
}

Permalink is fixed

@misc{bencaodian-can-sha, author = {{Bencaodian Editorial}}, title = {Cán Shā 蚕沙 (Silkworm Droppings) — Bombycis Faeces}, year = {2026}, howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine}, url = {https://bencaodian.org/en/herbs/can-sha}, urldate = {2026-04-16}, note = {CC BY-SA 4.0} }