Points Database

Location Guides:

: Shangliao : Upper Crevice

Bl-31 : Foot Taiyang Bladder 31


Meetings:
Meeting of Bladder with Gall Bladder

Location:
Over the first posterior sacral foramen.

Needling:
Perpendicular insertion 0.5 - 1 cun, or 1.5 - 2 cun through the foramen using a slightly oblique medial and inferior insertion.

Warning:
Some classical sources forbid moxibustion at this point, but the Ling Shu, Ch. 22, actively suggests burning moxa over the sacrum in manic-depression. Contraindicated during pregnancy.


TCM Actions:
Regulates the lower jiao and facilitates urinatino and defecation
Regulates menstruation and stops leucorrhoea
Benefits the lumbar region and legs

TCM Indications:
  • Difficult urination and defecation.
  • Irregular menstruation, dysmenorrhoea, infertility, leucorrhoea, incessant white leucorrhoea, seminal emission, impotence, itching and pain of the genitals, uterine prolapse.
  • Vomiting, nosebleed, malarial chills and fever.
  • Lumbar pain, cold and pain of the back and knees.

    Neuroanatomy:
    Superficial Innervation: Dorsal rami of S1 - S3
    Dermatome Segment: S3
    Deeper Structures: Sacral nerve S1 emerging from foramen

    Notes:
    One of the Baliao or "eight crevices" located in the sacral foramen which all regulate urination, defecation, menstruation and benefit the lumbar region and legs.

    Lad and Durve (2008) in Marma Points of Ayurveda call this point Kati and associate it with Apana Vayu, Ranjaka Pitta and Kledaka Kapha.

    They give the following functions:
    - Benefits bladder
    - Benefits ovaries and fallopian tubes
    - Relieves inflammation
    - Relieves local congestion
    - Relieves pain locally


    Reference Notes: (click to display)