Shu-stream (wood) point.

bubble_chart Etymology

"Jian" (間), gap. It is the third point of hand yangming large intestine meridian (LI), located in the gap behind second metacarpophalangeal joint, hence the name.

bubble_chart Location

Sanjian (LI3) acupoint
(adapted from "Meridians and Acupoints")

• Lingshu-Benshu: "Qi enters Sanjian (LI3) located behind second metacarpophalangeal joint";
• Zhenjiu Jiayi Jing: "In the depression on the inner side, behind the second metacarpophalangeal joint";
• Xunjing Kaoxue Bian: "Approximately 2 fen away, in the depression."

bubble_chart Anatomy

• Muscles: The first dorsal interosseous muscle, the palmar side is the first lumbrical muscle, the dorsal side is the second metacarpal bone; the deep volar side is the superficial and deep flexor tendons, and the dorsal side is the first interosseous muscle. Palmar muscles.
• Nerve: There are dual distributions of the dorsal digital nerve of the radial nerve and the palmar proper nerve of the median nerve in the skin and subcutaneous tissue.
• Vessels: In the subcutaneous tissue, there are the digital radial palmar artery (divided from the main thumb artery of the radial artery) and the dorsal palmar vein.

bubble_chart Manipulation

Make a half-clenched fist and make a perpendicular insertion to the volar side of the metacarpal bone or an oblique insertion of 0.5 to 1 cun in the direction of Hegu (LI4).

bubble_chart Efficacy

Discharge heat and benefit throat, regulate intestine and promote bowel movement.

• Eye pain, lower tooth pain, sore throat and swelling, throat obstruction, throat blockage, redness and swelling of the fingers and back of the hand, cold and heat, fullness in the chest and abdominal rumbling, shoulder pain, dry lips and mouth, body heat, wheezing, constipation, excessive salivation when lying down, malaria, numbness of the fingers, fever without sweating.
• Modern: Oral and jaw-related conditions, trigeminal neuralgia, insomnia.

bubble_chart Combinations

• Dullness or blur in the eyes: Zanzhu (BL2), Sanjian (LI3).
• Pharyngitis: Jianshi (PC5), Sanjian (LI3).
• Wind-cold and fatigue in the shoulder and back: Sanjian (LI3), Shenshu (BL23).
• Swelling and pain on the back of the hand: Sanjian (LI3), Houxi (SI3).