3 cun below Yinlingquan (SP 9) at the posterior border of the tibia.
Lumbago, abdominal distention, menorrhalgia or menorrhagia. Abdominal pain and distension, diarrhea, edema, dysuria, nocturnal emission, irregular menstruation, dysmenorrhea.
Removes obstructions from the channel, regulates Qi and blood, regulates the uterus, stops pain.
It is a Wood point.
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Perpendicularly 1.0-1.2 inches.