Acupuncture Points Notebook

Location Guides:

: Guangming : Bright Light

GB-37 : Foot Shaoyang Gall Bladder 37

Luo-connecting point
Trigger point (Travell & Simons, 1998, Trigger Point Manual)

On the lateral aspect of the leg, 5 cun superior to the prominence of the lateral malleolus, at the anterior border of the fibula.

Perpendicular insertion 1 - 1.5 cun

TCM Actions:
Benefits the eyes
Dispels wind-damp, activates the channel and alleviates pain

TCM Indications:
  • Eye pain, night blindness, itching of the eyes, long sightedness, short sightedness.
  • One-sided headache, grinding of the teeth, distension and pain of the breast, febrile disease with absence of sweating, sudden mania.
  • Knee pain, pain of the lower legs with inability to stand for long, atrophy disorder of the legs with difficulty in standing after sitting, atrophy disorder and painful obstruction of the lower limb with numbness, numbness of the body, heat and pain of the lower leg.

    Superficial Innervation: Superficial fibular (peroneal) nerve (S4 - S1)
    Dermatome Segment: L5

    Trigger Point Associations:
    Muscle: Peroneus brevis
    Myotome Innervation: Superficial fibular (peroneal) nerve from common peroneal nerve (L4 - S2)
    Pain Referral Pattern: To the lateral malleolus
    Indications: Strain of foot everters ; Ankle sprain

    Ling Shu Ch. 6 suggests piercing the Luo points if a disease is in the Yang of the Yin realm (e.g. the Fu organs) implying this point for disorders of the Gall Bladder.

    Ling Shu Ch. 10, On Channels, describes the diseases relating to the Luo emanating from this point as:
    Repletion: Qi recedes in the legs
    Depletion: Paralysis and loss of function of the legs
    (Unschuld, 2016).

    Ling Shu Ch. 19, On the Four Seasonal Qi, advises using the channels and Luo vessels for diseases which occur in spring. They are pierced deeply if severe and more shallow if mild. For the other seasons:
    - in summer choose the Yang channels and Luo located in the partings between the skin and flesh
    - in autumn choose the Shu-Stream points unless the disease in the Fu organs, then use the He-Sea points
    - in winter choose Jing-Well and Ying-Spring opening and retain the needle.

    Ling Shu Ch. 21, On Cold and Heat Diseases, repeats the advice to use Luo in spring but and adds that they can also treat diseases of the skin. For the other seasons it differs slightly from Ch. 19:
    - in summer choose the partings in skin structures which also treat the muscle and flesh
    - in autumn Taiyuan Lu-9 is chosen and can treat the sinews and vessels (this may also apply to other Shu-Stream points for this purpose, text is unclear)
    - in winter one chooses the main channel points which also treat the bones and marrow.


    When combined with Qichong St-30 or Gongsun Sp-4 and Yintang this point is related to the final Seventh Level of Manifestation of the Soul, equivalent to the Sahasrara crown chakra. It deals with the interconnectedness of all things, collective consciousness and connection with the Divine. The name of this point refers to the glow of light depicted around enlightened beings and all that they see representing their connection to all things (Yuen, 2005, 3 Spirits & 7 Souls).

    It can also bled in cases of diseases of the retina (ibid.).


    In Tung acupuncture the Er Zhong, Second Layer, point is located here. It is often combined with Yi Zhong, First Layer, 2 cun below at Xuanzhong GB-39, and San Zhong Third Layer, 2 cun above this point Waiqu GB-36, all anterior to the fibula. They are all used for symptoms of the Gall Bladder channel, especially those in the neck and throat (goiter, thyroid, soreness or pain), Wind or Yang rising (Bell's Palsy, migraine, Parkinsons) and problems of the liver and spleen (Chu, 2015).

    Reference Notes: (click to display)