SI 4

Acupuncture Point Theory

SI 4 Acupuncture Point Applications and Theory

The acupuncture point "SI 4" , 腕骨, is represented by "Wan Gu" in pinyin and "Wrist Bone" in english and may be found:

On the ulnar side of the palm in a depression between the base of the 5th metacarpal joint and the hamate bone.


Of many possible clinical applications, it may be considered to influence the following issues/symptoms:

  • Local point for shoulder, arm, hand and wrist problems particularly along the course of the meridian.
  • Useful point to treat problems with all fingers - contracture, pain, swelling, stiffness.
  • Headache, neck pain.
  • Jaundice.  


Si 4 has the following theoretical associations which serve as important guideposts in designing an effective treatment protocol:

Explore si 4 functional groupings theory - Five Shu and/or YuanLuo, or read all point categories and related theory.

A single acupuncture point is not commonly thought of as an empirical way to influence a TCM diagnostic pattern. SI4, however, is a strong candidate to be incorporated into an acupuncture protocol for patients who exhibit: Liver and Gallbladder Damp Heat

SI 4 may potentially be used, in coordination with a well designed acupuncture treatment protocol, to influence the following conditions: Hand - Fingers Pain, Headache, Jaundice and/or Neck Pain

While not necessarily valid clinically, EX Yaotongxue (Acute issues of the low back - pain, sprain, stra…) and HT 7 (Tonify deficiencies of the HT Qi, Blood, Yin and …) are nearby.

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