Traditional Chinese Medicine Healing Herbs(TCMHH)

ACUPUNCTURE

San Yin Jiao: TCM Acupoint Guide

SANYINJIAO
By the TCMHH editorial team Not medically reviewed How we work Updated 6 Oct 2026
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Name

San Yin Jiao (Sanyinjiao)

Location

On the medial side of the lower leg, 3 cun superior to the prominence of the medial malleolus, in a depression close to the medial crest of the tibia, on the line drawn from the medial malleolus to SP-9 Yinlingquan. Note: this point is most readily located one handbreadth superior to the prominence of the medial malleolus.

Needling

  • Straight insertion, pointed slightly posterior, 1 to 1.5 cun, for diseases of the leg. Sensation: a numb, electric sensation, possibly extending to the bottom of the foot.
  • Slanted insertion pointed slightly upward, 1 to 1.5 cun, for diseases of the trunk. After Qi has been obtained, a strong needling method should be used for a short time. Sensation: distention and soreness possibly to the knee or along the medial aspect of the thigh.
  • Straight insertion toward GB-39 Xuanzhong, 1.5 to 2 cun, causing local distention and soreness.
  • Perpendicular or oblique proximal insertion, 1 to 1.5 cun.
  • Caution: this point is contraindicated during pregnancy.

Command Functions

  • Meeting point of the Spleen, Liver and Kidney channels
  • Master point of blood

Actions

  • Tonifies the Spleen and Stomach
  • Regulates the Stomach
  • Resolves Dampness and Damp-Heat
  • Dries Dampness and Cold-Dampness
  • Harmonizes the Liver
  • Spreads Liver Qi
  • Benefits the Kidneys
  • Tonifies the Kidneys
  • Stabilizes Kidney Qi
  • Regulates menstruation
  • Regulates the uterus
  • Induces labor
  • Calms the fetus
  • Harmonizes the Lower Jiao
  • Regulates urination
  • Benefits the genitals
  • Calms the Shen
  • Invigorates the Blood
  • Cools the Blood
  • Eliminates Blood Stasis
  • Activates the channel
  • Removes obstruction from the Jing-Luo channels
  • Alleviates pain
  • Nourishes Blood, Yin and Jing
  • Moistens Dryness
  • Warms Cold
  • Raises Middle Qi
  • Softens hard masses
  • Stimulates the adrenal, pituitary and ovaries

Indications

  • Spleen and Stomach Deficiency
  • Spleen Deficiency with a heavy body
  • Heaviness of the four limbs
  • Edema
  • Borborygmus
  • Diarrhea
  • Undigested food in the stool
  • Abdominal distention
  • Abdominal pain
  • Distention and fullness of the upper abdomen
  • Cold abdomen
  • Unbearable pain below the umbilicus
  • Pain of the Spleen
  • Fullness and distention of the Heart and abdomen
  • No desire to eat and drink
  • Vomiting of fluid after eating
  • Sudden turmoil disorder
  • Seminal emission
  • Nocturnal emissions
  • Seminal emission with dreaming
  • Sexual hyperactivity in men
  • Impotence
  • Pain of the genitals
  • Pain of the penis
  • Contracted testicles
  • Shan (hernia) disorder
  • Pain due to Shan disorder
  • Dizziness
  • Blurred vision
  • Tinnitus
  • Yawning
  • Hypertension
  • Damp painful Bi
  • Painful Bi of the lower limbs
  • Heat in the soles of the feet
  • Eczema
  • Counterflow Cold of the feet and hands
  • Loss of consciousness
  • Purple lips
  • Vertigo from Blood Deficiency
  • Itchiness of the scrotum or vagina
  • Irritability
  • Night sweats
  • Feeling of Heat
  • Hemafecia with dark Blood
  • Lower abdominal pain
  • Pancreatitis
  • Spontaneous sweating
  • Night sweating
  • Leg Qi
  • Dysenteric disorders
  • Nephritis
  • Prostatitis
  • Emaciation
  • Weakness
  • Menopausal syndrome
  • Hysteria with sudden laughing and crying
  • Abdominal organ prolapse
  • Splenomegaly
  • Scrofula
  • Hard abdominal masses or tumors
  • Motor impairment and pain of the medial side of the ankle
  • Fear
  • Thrush
  • Anorexia
  • Cholera
  • Orchitis
  • Paralysis of the four limbs
  • Postpartum hemorrhage
  • Blepharocalasis, that is drooping of the eyelid
  • Lower jaw relaxed so the mouth cannot be closed
  • Arms and legs cannot be flexed
  • Beriberi
  • Irregular menstruation
  • Uterine bleeding
  • Uterine bleeding with dizziness
  • Menorrhagia
  • Amenorrhea
  • Dysmenorrhea
  • Abdominal masses in women
  • Leukorrhea
  • Uterine prolapse
  • Infertility
  • Restless fetus syndrome
  • Transverse presentation
  • Delayed labor
  • Prolonged labor
  • Difficult labor
  • Retention of lochia
  • Retention of dead fetus
  • Postpartum dizziness
  • Difficult urination
  • Enuresis
  • The five types of painful urinary dysfunction
  • Cloudy urine
  • White turbidity
  • Palpitations
  • Insomnia
  • Gallbladder Deficiency
  • Sudden fright disorder in children
  • Leg pain
  • Crane's knee
  • Atrophy disorder
  • Hemiplegia
  • Shin pain
  • Urticaria
  • Collapse of Yang
  • Aversion to Cold
  • Urinary incontinence
  • Urinary retention
  • Neurasthenia
  • Poor digestion
  • Colic
  • Mucus in the stools
  • Constipation with small-bitty stools
  • Dry mouth
  • Blood Heat skin diseases
  • Hyperthyroidism
  • Enteritis
  • Loose stools
  • Fatigued extremities
  • Flatulence
  • Hepatitis
  • Renal colic
  • Urinary tract infection
  • Lower back and knee pain
  • Morning sickness
  • Testicular mumps
  • Liver cirrhosis
  • Inguinal lymphadenitis
  • Muscular atrophy of the lower limb
  • Gonorrhea
  • Syphilis
  • Fungal infections
  • Tetany
  • Hemorrhoids persisting after childbirth
  • Metritis
  • Lower limb imperception and neuralgia
  • Knee pain
  • Long-standing foot swelling
  • Postpartum syncope
  • Neurodermatitis
  • Painful rheumatism
  • Four limbs cold and icy

Combinations

PointsIndications
HT-7 ShenmenAny kind of insomnia
SP-9 YinlingquanDiarrhea with undigested food
REN-8 Shenque, LIV-3 TaichongDiarrhea with thin stools
REN-12 ZhongwanUndigested food in the stools
ST-21 Liangmen, ST-36 Zusanli, UB-25 Dachengshu, REN-10 Xiawan, UB-22 Sanjiaoshu, DU-5 XuanshuUndigested food in the stools
ST-9 Renying, PC-6 Neiguan, SJ-1 Guanchong, ST-36 ZusanliSudden turmoil disorder, headache, chest pain and dyspneic rales
SP-5 ShangqiuSpleen Deficiency constipation
GB-26 Daimai, REN-6 Qihai, REN-3 Zhongji, UB-23 ShenshuIrregular menstruation
GB-41 Zulinqi, REN-3 ZhongjiInhibited menstruation
LIV-3 Taichong or KI-8 Jiaoxin, KI-10 Yingu, LIV-3 TaichongProfuse, ceaseless uterine bleeding
REN-5 ShimenWomen who have had too many children
LIV-3 Taichong, LI-4 HeguDifficult delivery (reduce SP-6 and LIV-3 and reinforce LI-4)
REN-3 ZhongjiRetention of the placenta (reduce both points)
REN-3 Zhongji, GB-21 JianjingRetention of the placenta
ST-36 Zusanli, SJ-6 ZhigouPostpartum dizziness
REN-6 QihaiPostpartum blood clot pain, white turbidity, chronic seminal emission
REN-1 Huiyin, REN-3 ZhongjiSudden redness, swelling and pain of the vagina
UB-30 Baihuanshu, GB-26 Daimai, REN-4 Guanyuan, REN-6 Qihai, PC-5 JianshiRed and white leukorrhea
LU-10 Yuji, KI-3 Taixi, REN-3 ZhongjiPain of the penis
ST-29 Guilai, LIV-1 DadunSagging and swollen testicle without pain
ST-36 Zusanli, REN-12 Zhongwan, LIV-3 TaichongBuerger's disease
KI-6 Zhaohai, LIV-8 QuquanLower abdominal pain from severe shan (hernial) disorder
SP-9 Yinlingquan, REN-6 Qihai, KI-10 Yingu, PC-7 DalingObstructed urination
REN-5 Shimen, REN-4 Guanyuan, REN-3 Zhongji, REN-2 QuguInability to urinate
LIV-6 Zhongdu, LI-4 Hegu, LI-11 Quchi, SJ-3 Zhongzhu, SJ-2 Yemen, LIV-2 Xingjian, ST-44 Neiting, SP-9 YinlingquanEdema of the four limbs
LIV-14 Qimen, REN-4 Guanyuan, REN-3 Zhongji, REN-5 Shimen, SP-10 XuehaiRunning piglet Qi in women
LIV-13 Zhangmen, REN-5 ShimenRunning piglet Qi
ST-27 Daju, REN-6 QihaiPalpitations and insomnia
SP-9 Yinlingquan, SP-1 Yinbai, SP-4 Gongsun, UB-13 Feishu, LU-9 TaiyuanInsomnia
ST-36 ZusanliStrongly tonifies Middle Jiao Qi, tonifies Blood to remove tiredness, Cold-Damp leg qi
GB-30 Huantiao, UB-65 Shugu, KI-8 Jiaoxin, KI-10 YinguHip pain
GB-41 ZulinqiHip pain with difficulty walking, pain of the skin on the lateral aspect of the leg
ST-36 Zusanli, GB-39 XuanzhongLig qi
HT-7 Shenmen, ST-36 Zusanli, M-HN-3 YintangInsomnia due to Heart and Spleen Deficiency
HT-7 Shenmen, KI-3 Taixi, KI-6 ZhaohaiInsomnia due to Disharmony between the Heart and Kidneys
HT-7 Shenmen, M-HN-54 Anmian, UB-18 Ganshu, UB-19 DanshuInsomnia due to Liver Fire

Contraindications

Contraindicated during pregnancy.

Notes

One of the most important and widely used acupuncture points. It is a primary point in the treatment of many digestive, gynecological, sexual, urinary and emotional disorders. It is an essential point to induce labor, assist in transverse presentation and alleviate pain of childbirth. It is one of the most important points to harmonize and cool the Blood and to promote and invigorate circulation. This point is for very deep depression, when the person is desperate and wants to run away and wants to throw up their jobs, family and food, the feeling that I cannot take it anymore. This point has a powerful effect in lowering temperature. It is a major point for insomnia.

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Sources and further reading

We cite classical materia medica and modern reference works. This article is health education, not medical advice.

  • Shennong Bencao Jing (The Divine Farmer's Materia Medica), Han dynasty.
  • Bencao Gangmu (Compendium of Materia Medica), Li Shizhen, 1578.
  • Chinese Pharmacopoeia, current edition — identity, quality and safety monographs.
  • NCCIH and WHO reference material on traditional medicine safety.

Spotted an error or a better source? Tell us — corrections are logged on our editorial policy page.

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