3 cun proximal to LI-5 (in the center of the anatomical snuffbox), on the line connecting LI-5 and LI-11, between the abductor pollicis longus and extensor pollicis brevis muscles, at the level of the musculotendinous junction.
🧭 How to find it (practical)
With the elbow slightly flexed, locate the point 3 cun above Yang Xi (LI-5), on the lateral border of the radius.
🔬 Anatomy
Extensor carpi radialis longus and brevis muscles, abductor pollicis longus muscle. Innervated by the lateral cutaneous nerve of the forearm and the superficial branch of the radial nerve.
💉 Needling
Transverse-oblique or perpendicular insertion, 0.5–1.0 cun.
📜 Etymology
Pian (偏), divergence; Li (歴), passage. A collateral of the Large Intestine Meridian separates from the Lung Meridian at this point.
