Plate shown for male body
Location
Knee, midpoint of popliteal crease
Needling Depth
0.5–1 cun, or prick to bleed
Moderate depth — mind underlying structures.
Always palpate landmarks and angle away from vital structures. Chest/neck: oblique, shallow only.
Avoid popliteal artery.
Anatomy & Safe Needling
Structure: Popliteal vessels
Risk: Popliteal artery
Method: Avoid artery; prick-to-bleed uses medial.
Acupressure Self-Use
Indications: Back pain, Acute back spasm, Heat
Technique: Press the center of the back of the knee, gentle.
Duration: 1–2 min
Bladder sea point; 'back pain treat Weizhong'.
Appears in Formulas
Low back pain (acute) (Qi-Blood stagnation) — Distal/Sea — 'back → Weizhong'
Bladder Meridian Flow
Water · Yang · peak 3–5 PMQi flowing along the Bladder — direction of animation reflects channel flow.
My notes on BL 40