Extra point · Upper Limb
Small Bone Space
小骨空Xiǎo Gǔ KōngAnatomical location
On the dorsum of the little finger, at the midpoint of the proximal interphalangeal joint.
Same point as 102PC · Xiǎo Gǔ Kōng — Curious Points catalogMain function
Benefits the eyes, activates the collateral.
Therapeutic indications
- Conjunctivitis
- eye pain
- sore throat
Name and classical tradition
Xiaogukong, 小骨空, is the “small hollow of the bone,” the counterpart of EX-UE5 on the little finger: 小, small, here the little finger; 骨空, the hollow between the bones.
The Zhenjiu Dacheng (Great Compendium of Acupuncture and Moxibustion) describes it in a single line: «小骨空二穴,在手小拇指第二節尖是穴,灸七壯,治手節疼,目痛», at the tip of the second joint of the little finger, with seven cones, for pain in the joints of the hand and in the eyes. A poem in the same book puts the two together: «大小骨空治眼», the large and small hollows treat the eyes.

