肩贞
SI9 Acupuncture Point

Jianzhen

Shoulder Chastity

Small Intestine Channel
Location

On the back of the shoulder, below the shoulder joint.

Traditional functions

Used for shoulder pain.

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This entry is a plain-language reference, not a guide to self-treatment. Acupuncture point locations require hands-on training to identify and use safely — please see a licensed acupuncturist for treatment.