At the lateral end of the popliteal crease, 1 cun superior to BL-39, on the medial side of the tendon of the biceps femoris.
🧭 How to find it (practical)
In ventral or lateral decubitus, first locate Wei Yang (BL-39). Locate Fu Xi (BL-38) 1 cun directly superior to Wei Yang (BL-39), medial to the tendon of the biceps femoris muscle.
🔬 Anatomy
Tendon of the biceps femoris, lateral head of the gastrocnemius. Innervated by the common fibular nerve.
💉 Needling
Perpendicular insertion, 0.5–1.0 cun.
📜 Etymology
Fu (浮), above; Xi (郗), crevice. The point lies above the popliteal fossa when the knee is flexed.
