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Weishu (BL-21), “Stomach Shu”, is the Back-Shu point of the Stomach. It harmonises and strengthens the Stomach, promotes digestion and descends rebellious qi.
Location
On the back, 1.5 cun lateral to the lower border of the spinous process of the twelfth thoracic vertebra (T12).
Anatomy
On the latissimus dorsi, over the erector spinae; the subcostal artery; the dorsal rami of the thoracic nerves.
Actions & Functions
- Harmonises and strengthens the Stomach (Back-Shu of the Stomach)
- Promotes digestion and descends rebellious qi
Indications
Stomach pain and epigastric distension, poor appetite, nausea and vomiting, and indigestion.
Needling
0.5-0.7 cun, oblique insertion towards the spine.
Moxibustion Suitability
Suitable for moxibustion.
Point Combinations
With BL-20 and REN-12 to strengthen the Stomach and Spleen.
Classical Text References
The Back-Shu point of the Stomach.
Cautions & Contraindications
Avoid deep insertion (kidney lies deep); needle obliquely.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.