High risk of pneumothorax. Do not needle perpendicularly or deeply (the apex of the lung lies directly beneath). Caution: pneumothorax.
📍 Location (classical)
On the back, 2 cun lateral to the inferior border of the spinous process of the seventh cervical vertebra (C7).
🧭 How to find it (practical)
Seated or in the prone position, first locate Da Zhui (GV-14). Locate the point Jian Zhong Shu (SI-15) 2 cun lateral to Da Zhui (GV-14), at the end of the transverse process of the first thoracic vertebra.
🔬 Anatomy
Trapezius and levator scapulae muscles. Innervated by the accessory nerve and dorsal scapular nerve. Transverse cervical artery.
💉 Needling
0.5–1 cun perpendicularly or obliquely in a medial direction.
📜 Etymology
Jian (肩), shoulder; Zhong (中), central or medial; Shu (俞), point. The point lies near the midline of the spine.
[location] On the back, below the spinous process of the seventh cervical vertebra, 2 cun lateral to the posterior median line. (Fig. 9.23)
