Acupuncture Points Notebook

Location Guides:

: Weiyang : Outside of the Crook

Bl-39 : Foot Taiyang Bladder 39

Classifications:
Lower He-Sea point of the san jiao
Homeostatic point 11 (Ma, Ma & Cho, 2005, Biomedical Acupuncture for Pain Management)

Location:
At the back of the knee, on the popliteal crease and towards its lateral end, in the depression medial to the tendon of biceps femoris. Locate with the knee slightly flexed.

Needling:
Perpendicular insertion 1 - 1.5 cun, or transverse insertion to Ququan Kid-10 combined with Weizhong Bl-40 in "Crossed T-Shaped Needling".

TCM Actions:
Harmonises the San Jiao and regulates urination
Activates the channel and alleviates pain

TCM Indications:
  • Difficult urination, retention of urine, painful urinary dysfunction, enuresis.
  • Stiffness and pin of the lumbar spine, lumbar pain radiating to the abdomen, contraction and pain of the leg and foot.
  • Fullness of the chest, pain and swelling of the axilla, distension and fullness of the lower abdomen, haemorrhoids, constipation.

    Neuroanatomy:
    Superficial Innervation: Posterior cutaneous nerve of the thigh (S1 - S3)
    Dermatome Segment: S2
    Deeper Structures: Possibly common fibular peroneal nerve (L4 - S2)

    Notes:
    This point is also on the 4th trajectory of the Chong mai relating to structural aspects of the body via the Qiao (Yuen, 2005, The Extraoridinary Vessels).

    "Crossed T-Shaped Needling" involves transverse needling from Weiyang Bl-40 to Ququan Kid-10 combined with perpendicular needling of Weizhong Bl-40 for numbness or paralysis of the leg (Liu Yan, 2008, Diagrams of Acupuncture Manipulations, p.138).

    In Tibetan medicine:
    Moxa point (AMNH, Tibetan Medical Paintings)

    In Thai massage:
    Acupressure point indicated for back, leg and knee pain/injury/arthritis and sciatica (Salguero & Roylance, 2011, Encyclopedia of Thai Massage)


    Reference Notes: (click to display)