Directly Below the Belly of Muscle Gastrocnemius, on a Line Joining Weizhong (UB 40) and Tendo Calcaneus, About 8 Cun(Width of the Thump) Below Weizhong (UB 40).
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Organ
BL - URINARY BLADDER or BLADDER - Taiyang
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UB-57 or BL-57 - Edema(Swelling Due to Inflammation or Injury)