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Sanjiaoshu (BL-22), the Back-Shu point of the San Jiao (Triple Burner), regulates water metabolism, harmonises the middle and lower burners and strengthens the lower back.
Location
On the lower back, 1.5 cun lateral to the lower border of the spinous process of the first lumbar vertebra (L1).
Anatomy
On the latissimus dorsi, over the erector spinae; the lumbar artery; the dorsal rami of the lumbar nerves.
Actions & Functions
- Regulates the Triple Burner and water metabolism (Back-Shu of the San Jiao)
- Harmonises the middle and lower burners
- Strengthens the lower back
Indications
Oedema and difficult urination, abdominal distension, borborygmus and diarrhoea, and lower back pain.
Needling
0.5-1.0 cun, perpendicular or oblique insertion.
Moxibustion Suitability
Suitable for moxibustion.
Point Combinations
With BL-23 and SP-9 for oedema.
Classical Text References
The Back-Shu point of the San Jiao.
Cautions & Contraindications
Avoid deep insertion towards the kidney.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.