Acupuncture Points Notebook

: Lianquan : Corner Spring

Ren-23 : Extraordinary Conception Vessel 23

Meeting of Conception Vessel with Yin Wei Mai, Kidney Divergent, Gall Bladder Divergent, Stomach Divergent, Spleen Divergent, Heart Divergent and Pericardium Divergent

On the anterior midline of the neck, in the depression above the hyoid bone.

Oblique insertion in the direction of Baihui Du-20, 0.5 cun - 1.2 cun.

According to several modern texts this point is contraindicated to moxibustion

TCM Actions:
Benefits the tongue
Descends qi and alleviates cough

TCM Indications:
  • Swelling below the tongue with difficulty speaking, sudden loss of voice, loss of voice following windstroke, contraction of the root of the tongue with difficulty in eating, protrusion of the tongue, much spittle, dryness of the mouth, thirst, mouth ulcers, lockjaw.
  • Cough, rebellious qi, dyspnoea, chest pain, vomiting of foam.

    Superficial Innervation: Transverse (superficial or cutaneous) cervical nerve (C2, C3)
    Dermatome Segment: C3
    Deeper Structures: Hypoglossal (CN XII) and glossopharyngeal nerve (CN IX) at posterior of tongue and lingual nerves from mandibular branch of trigeminal (CN V3) at either side

    Mainly used for loss of voice and stiffness of the tongue following windstroke. Can also be used for salivation disorders by directing alternately towards extra points Jinjin and Yuyue.


    Ling Shu Ch. 5 places this point as the end of Shaoyin with Yong quan Kid-1 as the root. In cases where "the vessel has knots and is no longer passable" (trans. Unschuld 2016) the whole channel is to be examined for surplus and deficiency and the knots removed.

    Ling Shu Ch. 22, On Madness and Mania, advises using this point if the patient sleeps little, is not hungry, considers themselves extraordinary and are insulting to others. Blood is removed from the hand Taiyang, Yangming and Taiyin as well as the Shaoyin point under the tongue which corresponds to this point (Unschuld, 2016, cites a comment that also adds Shenmen He-7, Shaochong He-9 to this). Only vessels that show an abundance are bled, those without are spared.

    Ling Shu Ch. 23, On Heat Diseases, recommends this point with Yinlingquan Sp-9 and Yongquan Kid-1 to remove a Heat disease with tension and pain on both sides of the navel, and a feeling of fullness in the chest and flanks.

    The same chapter gives a different list of points for the "59 Piercings" to Su Wen Ch. 61 which includes this point.

    Ling Shu Ch. 52, On the Wei Qi, considers this point or Shenshu Ren-23 to be the tip of the foot Shaoyin meridian with the root being at Zhaohai Kid-6, Fuliu Kid-7 or Jiaoxin Kid-8 (the text is vague and says 3 cun above or below the inner ankle).

    Ling Shu Ch. 59, On Abnormal Wei Qi, advises this point (referred to as Houzhong), Renying St-9 and Tiantu Ren-22 to drain accumulations in the chest. If there are accumulations in the chest and abdomen then these three points are coupled with Qichong St-30 and Zusanli St-36 used for draining accumulations below and Zhangmen Liv-13 in the middle. In severe cases a "chicken claw" technique, using three needles positioned like the character 个 Ge, are to be used. If the pulse is large and wiry and the the abdomen is tense it must not be pierced.

    Ling Shu Ch. 75, On Piercing to Regulate True and Evil Qi, recommends this point as part of the "Shaking Off Dust" treatment for when the patient's coughs, the Qi rises, his body curves and chest aches. It should be pierced until the blood (Unschuld, 2016) or complexion (Wu & Wu, 2010) undergoes a change.


    Yuen (2005, The Eight Extraordinary Vessels) states that, according to the Ling Shu theory that the Leg Yin channels terminate and concentrate their Qi on the central axis of the body, this is also the Termination point of the Kidney, to be used in instances of Kidney Yin Stasis.


    When using the Kidney or Heart Divergent meridians to expel a latent pathogen this point should be stimulated with Gua Sha before commencing needling (Cecil-Sterman, 2012, Advanced Acupuncture).


    Medieval phlebotomy point (Hans von Gersdorff, 1517: Feldtbüch der Wundartzney,


    Avicenna describes cupping at this point in his treatise On Cupping:

    "Cupping under the chin is good for the teeth, face and throat, and cleanses the head and the jaws." (Aspects of Treatment According to General Diseases, 22nd section in Abu-Asab, Amri & Micozzi, 2013, Avicenna's Medicine)


    Lad and Durve (2008) in Marma Points of Ayurveda call this point Kantha and associate it with the doshas: Prana Vayu, Udana Vayu, Bodhaka Kapha, Avalambaka Kapha and Sadhaka Pitta.

    They give the following functions:
    - Regulates thyroid and parathyroid function
    - Enkindles agni and eliminates ama (toxicity)
    - Regulates udana vayu, benefits speech
    - Benefits lungs, pharynx, larynx, trachea
    - Calms respiration, stimulates bronchodilation
    - Regulates expression of thought, feeling and emotion through speech
    - Releases suppressed emotions


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

    Reference Notes: (click to display)