CO2 (Colon 2) - Acupuncture Point Information

Chinese Name: Erjian
English Name: Second Interval

Location: In the depression of the radial side of the index finger, distal to the 2nd metacarpal-phalangeal joint. The point is located with the finger slightly flexed.


Ying-Spring point, Water point, sedation point.


Clears Heat.


Blurring of vision, epistaxis, toothache, sore throat, febrile diseases.


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)

[Click here to return to the complete Acupuncture Points Listing]

[Click here to return to the Colon Meridian chart]