On the anterior aspect of the thigh, directly below the anterior superior iliac spine (ASIS), in the depression lateral to the sartorius muscle when the thigh is flexed.
🧭 How to find it (practical)
Supine, locate the point below the anterior superior iliac spine, at the level of the inferior border of the pubis.
🔬 Anatomy
Rectus femoris and tensor fasciae latae muscles. Innervated by the lateral femoral cutaneous nerve and the femoral nerve.
💉 Needling
Perpendicular insertion 1.0–2.0 cun.
📜 Etymology
Bi (髀), thigh; Guan (关), joint. The point lies at the coxofemoral joint.
