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ST-39 Xiajuxu (下巨虛) — Lower Great Void
ST-39
Xiajuxu
下巨虛
Lower Great Void · Lower Great Hollow
Ponto He-Mar Inferior do Intestino DelgadoPonto do Mar de SangueSafeMembro Inferior
Depth
01–1.5 cun3.0
Perpendicular insertion
Precautions
No standard precaution.
Location (classical)
On the anterior surface of the leg, 9 cun below ST-35, one finger-breadth lateral to the anterior crest of the tibia.
How to find it (practical)
Seated, with the knee flexed, locate the point 6 cun directly below Zu San Li (ST-36).
Anatomy
Tibialis anterior muscle, extensor digitorum longus muscle. Innervated by the deep fibular nerve.
Needling
Perpendicular insertion 1.0–1.5 cun.
Etymology
Xia (下), lower; Ju (巨), great; Xu (虚), void. A large space is formed between the tibia and the fibula. The point lies at the lower part of this space.
CLASSICAL SOURCELing Shu
Clinical Relations
Adjacent Points on the Meridian