BL38

Bladder Channel

High Float

浮郄Fú Xì

Anatomical location

1 cun above BL39, at the medial border of the biceps femoris tendon, with the knee slightly flexed.

Main function

Regulates Qi, relieves pain, benefits the bladder and the urinary system.

Therapeutic indications

  • Leg pain
  • muscle spasms
  • dysuria
  • low back pain
  • Contracture of the popliteal fossa
  • Numbness of the thigh
  • Constipation
  • Bladder pain

Name and classical tradition

Fuxi, 浮郄, is the “upper cleft.” 浮 means to float, to be on the surface or high up; 郄 is the cleft, the hollow, which here is the popliteal fossa, behind the knee. The point is in the upper and outer part of that fossa, and the name places it at its upper border. It is a direct reading, with little complication.

The Zhenjiu Jiayi Jing (Systematic Classic of Acupuncture and Moxibustion) locates it «在委陽上一寸», one cun above BL39, Weiyang. The Yizong Jinjian (Golden Mirror of the Medical Tradition), the official Qing court treatise of the 18th century, gives an alternative location in relation to BL37 and Weiyang. No alternative names are known for it.

Location of point BL38, High Float
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View point on the 3D modelBL38 on the anatomy
Needling techniquePerpendicular insertion 0.5-1.5 cun.
Depth0.5-1.5 cun
MoxibustionApplicable (3-5 cones or 5-10 minutes)
Cover of the guide “Protocols for the 20 most common patterns”

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Protocols for the 20 patterns you see most in practice

Each pattern with its tongue, its pulse, the treatment principle and the points to tonify and disperse. Made for the treatment table, not the bookshelf.

Do you use BL38 with your patients?

In the Clinic you record it in the patient's file, next to the tongue, the pulse and the measurements, so at the next session you know exactly what you used. The Atlas is built in.

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