[Origin]

Yin, deep and central; door, meridian qi, the place of entry and exit. The point is located in the middle of the back of the thigh where the muscles are thick, and is located on both sides of the lower limbs of the human body, hence the name.

[Location]

Behind the thigh, 6 inches below the midpoint of the lower gluteal crease (Chengfu (BL36)), in the depression between the biceps femoris and semitendinosus, when On the line connecting Chengfu (BL36) and Weizhong (BL40); or at the midpoint of the lower hip crease (Chengfu ( The midpoint of the line connecting the midpoint of the popliteal crease (BL36) and the midpoint of the popliteal crease (Weizhong (BL40)).

• Zhenjiu Jiayi Jing: "Six inches under the Rouqie (Chengfu (BL36))",
• Leijing Tuyi added: "Between the two tendons on the popliteus";
• acupuncture and moxibustion internal chapter Note: "Maybe the cloud is in Weizhong (BL40) Eight and a half inches.

[Anatomy]

• Muscles: semitendinosus, long head of biceps femoris.
• Nerve: Posterior femoral cutaneous nerve, deep to the sciatic nerve trunk.
• Blood vessels: On the outside are the third perforators of the profunda femoral artery and vein.

[Manipulation]

Perpendicular insertion 2 to 3 inches. moxa cone moxibustion 3 to 5 times, moxa stick warm moxibustion for 10 to 15 minutes.

[Efficacy]

Sharp waist and legs.

• Classical: Lumbago, extrafemoral swelling, scrotal bloating.
• Modern: low back and leg pain, sciatica, acute lumbar sprain.

[Recipe]

• prolapse of lumbar intervertebral disc: waist 4~5 Jiaji (EX-B2), Yinmen (BL37).