三间
LI3 Acupuncture Point

Sanjian

Third Interval

Large Intestine Channel
Location

Behind the head of the second metacarpal bone, on the radial side of the index finger.

Traditional functions

Used for hand and finger discomfort.

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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.