Acupuncture Points Notebook

Location Guides:

: Gongsun : Grandfather Grandson

Sp-4 : Foot Taiyin Spleen 4

Luo-Connecting point
Confluent point of the Chong Mai, coupled with Neiguan Pc-6

On the medial side of the foot, in the depression distal and inferior to the base of the first metatarsal bone.

Perpendicular insertion 0.5 - 1 cun

TCM Actions:
Fortifies the spleen and harmonises the middle jiao
Regulates qi and resolves dampness
Calms the spirit
Benefits the heart and chest
Regulates the Chong Mai

TCM Indications:
  • Epigastric pain, vomiting, cold in the Stomach, no pleasure in eating, oesophageal constriction, distension and pain of the abdomen, distension and pain of the abdomen, distension and pain of the umbilical region, cutting pain of the intestines, drum distension, borborygmus, diarrhoea, undigested food in the stool, dysenteric disorder, blood in the stool, tenesmus, sudden turmoil disorder.
  • Mania-depression, manic raving, insomnia and restlessness, epilepsy, Heart pain, Gall Bladder deficiency, much sighing.
  • Irregular menstruation, gynaecological disorders, retention of the placenta and lochia.
  • Swelling of the head and face, oedema, leg qi, jaundice, malaria, cold malaria.
  • Pain of the heel, heat in the soles of the feet.

    Superficial Innervation: Superficial peroneal nerve from L4 - S1
    Dermatome Segment: L4

    Ling Shu Ch. 10 describes the diseases relating to the Luo emanating from this point as:
    Repletion: Cutting pain in the intestine
    Depletion: Abdomen swells like a drum
    (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.

    Ling Shu Ch. 22, On Mania and Madness, advises to bleed this channel in instances of insanity. The original just states the division (eg. bleed foot Taiyin) implying the main channel by omission but since it recommends bleeding the data is being entered under the Luo points unless a specific point is mentioned:
    - If a manic patient's back is stiff and bent in the adverse direction with pain in the spine then the hand and foot Taiyang (Wu and Wu, 2010), and the foot Yangming and Taiyin (Unschuld, 2016) are bled.
    - In the early stages of madness when sadness and hunger lead to the patient being grieved and forgetful, easily enraged with a tendency to be fearful, the foot Taiyin and Yangming can also be bled as an alternative (Unschuld, 2016) or as an addition (Wu & Wu, 2010) to bleeding the hand Taiyang and Yangming.
    - If a major delight causes a person to see demon-spirits and laugh inside but be unable to express it then blood is removed from the foot Taiyin, Taiyang and Yangming, and then from the hand Taiyin and Yangming.
    - If counterflow is causing the chest feels like it is about to burst, the intestines feel a sharp pain, the patient is vexed and cannot eat and the pulses are rough then this channel is bled and drained if the feet are warm and the foot Yangming channel is bled and supplemented if they are cool.

    Yuen explains the name of this point refers to its importance in treating inherited conditions as the opening point of the Chong mai (Yuen, 2005, The Extraordinary Vessels).

    This point can be used as an alternative to Qichong St-30 when combined with Guangming GB-37 and Yintang to treat deficiencies 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. As two possible locations for the opening of the Chong mai these can be used to represent the return to the source (Yuen, 2005, 3 Spirits & 7 Souls).

    Reference Notes: (click to display)