
Location
Head, 2.5 cun above occipital protuberance, 1.3 cun lateral
Needling Depth
0.3–0.5 cun, transverse
Shallow — low depth risk.
Always palpate landmarks and angle away from vital structures. Chest/neck: oblique, shallow only.
Bladder Meridian Flow
Water · Yang · peak 3–5 PMQi flowing along the Bladder — direction of animation reflects channel flow.
My notes on BL 9