Points Database

Location Guides:

: Zhizheng : Branch of the Upright

SI-7 : Hand Taiyang Small Intestine 7

Classifications:
Luo-Connecting point

Location:
On a line connecting Yanggu S.I.-5 and Xiaohai S.I.-8, 5 cun proximal to Yanggu S.I.-5, in the groove between the anterior border of the ulna and the muscle belly of flexor carpi ulnaris.

Needling:
Perpendicular insertion 0.5 - 1 cun

TCM Actions:
Clears heat and releases the exterior
Calms the spirit
Activates the channel and alleviates pain
Benefits the finger joints

TCM Indications:
  • Febrile disease, cold shivering and fiver, fever with neck and lumbar pain and desire to drink.
  • Mania-depression, fear and fright, sadness and anxiety, restless zang disorder.
  • Headache, dizziness, visual dizziness, blurred vision, superficial visual obstruction.
  • Feebleness of the four limbs, the five taxations, stiffness of the neck, contraction of the elbow, slackness of the joints and inability to move the elbow, severe pain of all the fingers, inability to grip firmly, inability to make a fist, warts.

    Neuroanatomy:
    Superficial Innervation: Medial cutaneous nerve of the forearm (C8 - T1)
    Dermatome Segment: T1

    Notes:
    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 Small Intestine.

    Ling Shu Ch. 10, On Channels, describes the diseases relating to the Luo emanating from this point as:
    Repletion: The joints relax and the elbows no longer function
    Depletion: Warts grow
    (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 hand Taiyang) 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:
    - It advises to bleed the arm Taiyang, Yangming and Taiyin at the onset when the patient is unhappy, the head feels heavy and they stare forward or upwards with red eyes, the heart is vexed and the complexion changes. Treatment is stopped once the colour changes (Unschuld, 2016, says "the colour of the blood changes", Wu & Wu, 2010, says "colour of the patient's complexion").
    - If there is distortion of the mouth, shouting and wailing then only the Taiyang and Yangming are used on the opposite side to where there is excess.
    - If the back is stiff and bent backwards like a bow with pain in the spine (opisthotonos?) then the hand and foot Taiyang (Wu and Wu, 2010), and the foot Yangming and Taiyin (Unshculd, 2016) are bled.
    - If in early stages of madness when sadness and hunger lead to the patient being grieved and forgetful, easily enraged with a tendency to be fearful, blood is removed from the hand Taiyang and Yangming. The foot Taiyin and Yangming can also be used (Unschuld, 2016, suggests it as an alternative, Wu & Wu, 2010, suggest it as an addition).
    - If they sleep little, are not hungry, consider themselves extraordinary and are insulting to others then blood is removed from the hand Taiyang, Yangming and Taiyin as well as the Shaoyin point under the tongue (Lianquan Ren-23 which terminates at the Shaoyin meridian in Ling Shu, Ch. 5. 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.
    - If a massive fright causes them to be easily startled, tend to laugh, sing and be happy then blood is removed from the hand Yangming, Taiyang and Taiyin.
    - If they have absurd visions and shout then remove blood from the hand Taiyang, Taiyin and Yangming (Wu & Wu, 2010, add foot Taiyang too) and on the cheeks of the head (Unschuld, 2016, describes them as on the foot Taiyin but the channel does not go to here).

    In Tung acupuncture the Chang Men, Intestine Gate, point is located 2 cun distal from this point, 3 cun proximal from the wrist crease, and the Gan Men, Liver Gate, point is located 1 cun proximal to this point, 6 cun proximal from the wrist crease on the Small Intestine channel. They are indicated for diseases of the bowel and liver respectively and combined, often with Huo Ying and Huo Zhu (approximately at Xingjian Liv-2 and Taiching Liv-3) for IBS.

    Medieval phlebotomy point (Hans von Gersdorff, 1517: Feldtbüch der Wundartzney, www.nlm.nih.gov) on the basilic vein near here.

    Points on the forearm were recommended for bleeding by Galen when the veins at the elbow crease were not visible (Brain, 1986, Galen on Bloodletting, p.91). This point would probably equate to Shaohai He-3 for disorders of the lower neck.

    Hippocrates in his Regimen in Acute Diseases recommends bleeding the vein of the inner forearm for pain in the chest. It should be left until the blood becomes either redder or livid (ibid.: 115).

    The Appendix to the Regimen on Acute Diseases attributed to Hippocrates suggests bleeding the internal vein of the arm (here or perhaps Shaohai He-3) for the pain of pneumonia or pleuritis that spreads up to the clavicle, around the breast or to the arm, or from the right arm in cases of loss of speech in acute conditions (ibid.: p.117).

    In Hippocrates' Aphorisms, Section VI, 36, it is advised that "Venesection cures dysuria; open the internal veins of the arm" (trans. Adams, 1849, http://classics.mit.edu/Hippocrates/aphorisms.6.vi.html) which would suggest this point or Quze Pc-3. No mechanism is given but it is interesting to note that in Chinese medicine this point shares a Taiyang relationship with the Bladder and the Luo points and points in the upper body are often used to clear Heat. There is also a well established protocol in herbal medicine where herbs like Mu Tong and Qu Mai connect the Heart, Small Intestine and Bladder providing a pathway for Heat to be expelled and can be used for dysuria.

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


    Reference Notes: (click to display)