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Small Intestine Meridian (Hand Tai Yin) Points

SI-4 (Wan Gu)


Chinese Name:

Wangu 腕骨

English translation:

Wrist Bone


On the ulnar aspect of the palm, in the depression between the 5th metacarpal bone and hamate bone, at the junction of the red and white skin.


Yuan-Source point of the Small Intestine Meridian


Headache with stiff neck, tinnitus, nebula, finger contarcture and arm pain (finger contracture, wrist/elbow/finger arthritis).
Jaundice, febrile diseases.
Pain in sides.
Hyperlacrimation, diabetes, emaciation and thirst, throat blockage, gastritis, cholecystitis, hand tremor, weak wrists, hemiplegia, convulsions, madness and fear, swelling of neck and chin, infantile meningeal syndrome, coldness and pain on shoulder and upper back.


Activates and clears the meridian, resolves Damp-Heat.


Clinically, Yuan-Source points are of great significance in treating diseases of the internal organs. Yuan-Source points are the sites where the Yuan (Primary) qi of the Zang-Fu organs passes and stays. Puncturing the Yuan-Source points stimulates the vital energy of the regular meridians, regulates the functional activities of the internal organs, reinforces antipathogenic factors and eliminates pathogenic factors. This method of treating diseases deals principally with the root causes. The Yuan (source) point from the affected meridian is often combined with the Luo (Connecting) point of the internally-externally related meridians in use.


Perpendicular insertion .3 - .5 cun.

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