承山
BL57 Acupuncture Point

Chengshan

Supporting Mountain

Bladder Channel
Location

On the back of the lower leg, at the junction where the calf muscle forms a clear V-shape.

Traditional functions

Used for calf cramps and lower back 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.