
Location
Leg, 5 cun below BL40, gastrocnemius
Needling Depth
0.5–1.5 cun
Deep needling — confirm anatomy first.
Always palpate landmarks and angle away from vital structures. Chest/neck: oblique, shallow only.
Trigger-Point Link
Gastrocnemius / Soleus — referred to Back of the knee down to the heel and Achilles.
Bladder Meridian Flow
Water · Yang · peak 3–5 PMQi flowing along the Bladder — direction of animation reflects channel flow.
My notes on BL 56