Points Database

Location Guides:

: Diwushui : Earth Five Meeting

GB-42 : Foot Shaoyang Gall Bladder 42


Location:
Between the 4th and 5th metatarsal bones, in the depression proximal to the metatarsal heads, on the medial side of the tendon of m. extensor digitorum longus branch to the little toe.

Needling:
Perpendicular insertion 0.5 - 0.8 cun

Warning:
Incorrect angle of insertion wil not enable the needle to pass between the shafts of the fourth and fifth metatarsal bones. The Systematic Classic of Acupuncture and Moxibustion, Great Compendium of Acupuncture and Moxibustion and Illustrated Classic of Acupuncture Points of the Bronze Man all say that this point should not be treated with moxibustion or emaciation and death will occur within 3 years. Modern sources agree that there is no contraindication to moxibustion at this point.


TCM Actions:
Spreads liver qi
Clears gall bladder heat

TCM Indications:
  • Headache, redness, itching and pain of the eyes, tinnitus, deafness.
  • Fullness of the chest, pain of the lateral costal region, swelling and pain of the axilla, distension and pain of the breasts, breast abscess, spitting blood due to internal injury.
  • Swelling, redness and pain of the dorsum of the foot, lumbar pain.

    Neuroanatomy:
    Superficial Innervation: Superficial fibular (peroneal) nerve (L4 - S1)
    Dermatome Segment: L5, S1

    Notes:
    In Tung acupuncture this is the location of the Shui Qu, Water Score, point. It is indicated for traumatic injury where it is often combined with Liu Wan (1 cun distal, at Xiaxi GB-43), and pain, stiffness and swelling along the channel and Damp disorders (Chu, 2015).

    The Tung point Mu Liu, Wood Remains, is located at the same level as this point between the 3rd and 4th metatarsal bones and indicated Shaoyang patterns including indigestion, fatigue and poor circulation, often combined with Mu Dou, Wood Combat, 1 cun distal (Chu, 2015).

    In Thai massage:
    Acupressure point (Salguero & Roylance, 2011, Encyclopedia of Thai Massage)



    Reference Notes: (click to display)