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Wangu (SI-4), “Wrist Bone”, is the Yuan-Source point of the Small Intestine channel. It resolves damp-heat, benefits the sinews and is used for jaundice and wrist disorders.
Location
On the ulnar border of the hand, in the depression between the base of the fifth metacarpal bone and the triquetral bone, at the border of the red and white skin.
Anatomy
On the abductor digiti minimi; the dorsal carpal branch of the ulnar artery; the dorsal branch of the ulnar nerve.
Actions & Functions
- Resolves damp-heat and benefits the gall bladder (jaundice)
- Clears heat and benefits the sinews
- Benefits the wrist and fingers
Indications
Jaundice, headache, stiff neck, tinnitus, febrile disease, diabetes (wasting and thirsting), and pain and contracture of the wrist and fingers.
Needling
0.3-0.5 cun, perpendicular insertion.
Moxibustion Suitability
Suitable for moxibustion.
Point Combinations
With LV-3 and GB-34 for jaundice; with SI-3 for neck and wrist disorders.
Classical Text References
The Yuan-Source point of the Small Intestine, classically used for jaundice.
Cautions & Contraindications
None specific.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.