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Acupuncture point · Small Intestine

Wangu (SI4)

Wangu (SI4), “Wrist Bone”, is a point on the Small Intestine meridian. It is point 4 of the 19 on the channel. Yuan-Source of the Small Intestine: clears Damp-Heat, resolves jaundice and frees the wrist.

腕骨 · Wàn GǔUpdated on

Location

On the ulnar aspect of the wrist, in the depression between the base of the fifth metacarpal and the triquetrum.

Functions according to tradition

Yuan-Source of the Small Intestine: clears Damp-Heat, resolves jaundice and frees the wrist.

Traditional indications

  • Wrist pain
  • Jaundice
  • Neck stiffness
  • Headache
  • Tinnitus

Indications described by tradition; they do not amount to proven clinical effectiveness for each one.

What its classification means

Source point (原, yuán)

Where the original Qi of the organ manifests. Tradition uses it both to examine and to treat the channel's organ.

Precautions

No specific precautions are described beyond the general ones for acupuncture. Needling must always be performed by a trained professional.

Points on other channels with similar indications

They share several traditional indications with this point. Comparing them helps understand why one or the other is chosen.

  • GB10 Fubai (Gallbladder): Headache, Neck stiffness, Tinnitus
  • GB11 Touqiaoyin (Gallbladder): Headache, Neck stiffness, Tinnitus
  • GB12 Wangu (Gallbladder): Headache, Neck stiffness
  • GV13 Taodao (Du Mai (Governing Vessel)): Headache, Neck stiffness
  • GV18 Qiangjian (Du Mai (Governing Vessel)): Headache, Neck stiffness
  • LI5 Yangxi (Large Intestine): Headache, Wrist pain

Point profile

Code
SI4
Pinyin name
Wàn Gǔ
Characters
腕骨
Translation
Wrist Bone
Element
Fire
Classification
Yuan-Source
Topics
Wrist, Jaundice, Neck

Health notice. Educational and study content. It describes concepts of Traditional Chinese Medicine and does not replace diagnosis or treatment by a healthcare professional. Needling, medicinal herbs and invasive techniques must be applied by trained professionals. Safety guide.