CO3 (Colon 3) - Acupuncture Point Information

Chinese Name: Sanjian
English Name: Third Interval

Location: When a loose fist is made, the point is on the radial side of the index finger, in the depression proximal to the head of the second metacarpal bone.


Shu-Stream point, Wood point.


Dispels exterior Wind, clears Heat, brightens the eyes, benefits the throat.


Toothache, ophthalmalgia, sore throat, redness and swelling of fingers and the dorsum of the hand.


The English Name, Nature and Function have been reprinted from Maciocia: The Foundations of Chinese Medicine, Copyright 1989, with permission from Elsevier. Point indications have been used from the book Chinese Acupuncture and Moxibustion.

View other points on the Colon channel:

(CO1, CO2, CO3, CO4, CO5, CO6, CO7, CO8, CO9, CO10, CO11, CO12, CO13, CO14, CO15, CO16, CO17, CO18, CO19, CO20)

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