On the posterior part of the head, on the posterior midline, 1.5 cun directly superior to GV-17 (at the midpoint between GV-16 and GV-20).
🧭 How to find it (practical)
Seated or in prone decubitus, locate the point 1.5 cun, immediately above the upper margin of the external occipital protuberance, on the posterior midline.
🔬 Anatomy
Epicranial aponeurosis. Innervated by the greater occipital nerve.
💉 Needling
Transverse (subcutaneous) insertion, 0.5–1.0 cun.
📜 Etymology
Qiang (強), stiffness; Jian (間), middle. The point is located between the parietal and occipital bones. Indicated to treat headache and cervical stiffness.