二間 (Èrjiān) — Second Space
Large Intestine channel · point 2
Traditionally used for
- Eye health
- Nose & throat
- Teeth & mouth
- Colds & fever
Location
On the index finger, in the depression distal to the radial side of the second metacarpophalangeal joint, at the border between red and white flesh.
How to locate: With the hand relaxed or in a loose fist, slide along the radial side of the index finger's proximal phalanx toward the knuckle, on the border of the red and white skin, until you feel the angle where the shaft meets the base of the bone. The point is in the hollow there, just distal to the joint and slightly toward the palm.
Distances are in cun, a proportional unit — how to measure.
3D view
3D view not available for this point: its position on the 3D model couldn't be checked against its location text, so it is not shown. The 2D maps above show it.
Needling
Cited needling
Techniques — the source gives these as alternatives:
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Oblique insertion — proximal or distalDepth 0.2–0.3 cunskindeeper
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Perpendicular-oblique insertion — towards the palmDepth 0.5–0.5 cunskindeeper
Depths describe average adult habitus in the cited population, never a single safe number for the patient in front of you. Palpate and adjust.
Sources (1)
- Deadman P, Al-Khafaji M, Baker K. A Manual of Acupuncture. Hove: Journal of Chinese Medicine Publications; 1998 — p. 101 Supports: techniques (names this point)
Site notes · not cited
Functions
- Clears heat from the Large Intestine channel and expels wind
- Reduces swelling and relieves pain of the face and throat
Indications
Balance Method partners
Under Dr. Tan's six systems, LI2 at the hand balances these channels at the regions its segment images.
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1. Same Chinese nameStomach channelFoot · Mirror (arm ↔ leg)Head & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Stomach channel →
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2. Branching (Bie Jing / Zang Fu Bie Tong)Liver channelFoot · Mirror (arm ↔ leg)Head & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Liver channel →
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3. Interior–exterior pairLung channelHand · Same segment, opposite sideHead & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Lung channel →
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4. Chinese clock oppositeKidney channelFoot · Mirror (arm ↔ leg)Head & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Kidney channel →
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5. Chinese clock neighbourStomach channelFoot · Mirror (arm ↔ leg)Head & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Stomach channel →
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6. Same channelLarge Intestine channelHand · Same segment, opposite sideHead & face, Crown & occiput, Ear · Image, head at the hand/footSolve for the Large Intestine channel →
Classical calendar method · 子午流注
When the tables open LI2
The hours Zi Wu Liu Zhu names this point at, by method. Times are the double-hour's start in UTC.
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庚申 15:00–17:00 Na Jia Fa, 戊-day sequence · Ying-Spring (滎)
「庚申滎穴二間遷」
Next: Wed 21 Oct, 15:00
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卯 05:00–07:00 Na Zi Fa, LI channel · reduce (瀉)
「瀉用卯時，二間，為滎水」
Next: Fri 16 Oct, 05:00
A classical reference, not a recommendation: the tables say when the method opens this point, not that it is the point to needle. Open points by the hour →
Similar Points
Sources
- World Health Organization. WHO Standard Acupuncture Point Locations in the Western Pacific Region. Manila: WHO Regional Office for the Western Pacific, 2008. (Location.)
- Focks C, ed. Atlas of Acupuncture. Edinburgh: Churchill Livingstone Elsevier, 2008. (Locating method and actions.)
📝 Notes
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