Traditional Chinese Medicine Healing Herbs(TCMHH)

ACUPUNCTURE

Cheng Jiang: TCM Acupoint Guide

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

Cheng Jiang (Chengjiang)

Location

In the depression in the center of the mentolabial groove, on the chin below the middle of the lower lip. Note: the mentolabial groove runs horizontally, approximately midway between the chin and the lower lip.

Needling

  • Slanted insertion, directed upward, 0.3 to 0.5 cun. Sensation: local distention and pain.
  • Transverse-oblique insertion directed superiorly, 0.2 to 0.3 cun.
  • Transverse insertion along the lower lip to join with ST-4 Dicang.
  • Puncture obliquely upward, 0.2 to 0.3 cun.
  • Moxibustion is applicable.

Command Functions

  • Meeting point of the Large Intestine, Stomach and DU channels
  • Exit point
  • Sun Si-miao Ghost point

Actions

  • Expels Exterior Wind
  • Extinguishes Wind
  • Benefits the face
  • Regulates the REN channel

Indications

  • Facial puffiness
  • Swelling of the gums
  • Toothache
  • Excess salivation
  • Mental disorders
  • Deviation of the eyes and mouth
  • Excessive fears
  • Lockjaw
  • Sudden voice loss
  • Gum pain
  • Melancholia
  • Wind epilepsy
  • Stiffness of the head and nape
  • Tetany
  • Mania-depression
  • Epistaxis
  • Dark urine
  • Sweating
  • Abdominal masses in women
  • Alveodental pyorrhea
  • Pyorrhea
  • Epilepsy and madness
  • Torticollis
  • Hemiplegia due to cerebral hemorrhage
  • Hernia
  • Anuria
  • Facial paralysis
  • Hemiplegia
  • Mouth and tongue ulcers
  • Emaciation and thirst
  • The more one drinks, the thirstier one gets
  • Lack of coordination
  • Deaf-mutism
  • Muteness
  • Gingivitis
  • Aphonia
  • Excessive thirst
  • Lip tension
  • Psychosis
  • Stiff neck
  • Pain and numbness of the face
  • Purple lips
  • Dry mouth
  • Wasting and thirsting disorder with a great desire to drink
  • Shan disorder in men
  • Trismus
  • Dental neuralgia
  • Dental caries
  • Contracture of the nape of the neck
  • Uterine spasms
  • Coma

Combinations

PointsIndications
LI-19 Heliao, M-HN-20 Qianzheng, GB-20 FengchiFacial paralysis
ST-4 Dicang, ST-45 LiduiFever blisters on the lips and mouth
DU-16 FengfuStiff neck, stiffness and pain of the neck with difficult rotation
LI-4 Hegu, ST-4 Dicang, ST-6 Jiache, DU-26 Renzhong, GB-2 TinghuiDeviation of the mouth and eye
LI-4 Hegu, ST-6 Jiache, DU-26 Renzhong, DU-20 BaihuiLockjaw following Windstroke, reduce Chengjiang
UB-40 WeizhongCeaseless nosebleed
UB-49 Yishe, KI-2 Rangu, SJ-1 GuanchongWasting and thirsting disorder with a great desire to drink
M-HN-20 Jinjin-Yuye, DU-26 Renzhong, REN-23 Lianquan, LI-11 Quchi, PC-8 Laogong, LIV-3 Taichong, LIV-2 Xingjian, KI-2 Rangu, SP-1 YinbaiWasting and thirsting disorder
PC-8 LaogongMouth ulcers

Notes

A good point if the REN channel is stuck or traumatized. Good for patients who are mentally or physically withered. It causes fluid secretions to flow freely and enhances the Spirit and mind. It is mostly used for Exterior Wind affecting the face, and is good for the treatment of psychosis and epilepsy.

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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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