Gongsun (SP4)
Gongsun (SP4), “Grandfather-Grandson”, is a point on the Spleen meridian. It is point 4 of the 21 on the channel. Opening point of Chong Mai.
Location
At the base of the 1st metatarsal, at the junction of the dorsal and plantar skin.
Functions according to tradition
Opening point of Chong Mai. Regulates Spleen and Stomach, harmonizes Heart, treats disorders related to heart and stomach through Chong Mai.
Traditional indications
- Stomach pain
- Nausea
- Diarrhea
- Menstrual disorders
- Palpitations
- Insomnia
- Gastric ulcer
Indications described by tradition; they do not amount to proven clinical effectiveness for each one.
What its classification means
From here the collateral that links the channel to its interior-exterior partner departs, which is why it is credited with acting on both channels at once.
At this point the channel crosses the Penetrating Vessel (Chong Mai, 冲脉), called the “sea of Blood”, one of the eight extraordinary vessels.
Precautions
Caution in pregnancy as Chong Mai regulates uterine blood.
Points on other channels with similar indications
They share several traditional indications with this point. Comparing them helps understand why one or the other is chosen.
- BL15 Xinshu (Bladder): Insomnia, Palpitations
- CV12 Zhongwan (Ren Mai (Conception Vessel)): Diarrhea, Gastric ulcer
- CV14 Juque (Ren Mai (Conception Vessel)): Insomnia, Palpitations
- GV11 Shendao (Du Mai (Governing Vessel)): Insomnia, Palpitations
- HT5 Tongli (Heart): Insomnia, Palpitations
- PC6 Neiguan (Pericardium): Insomnia, Palpitations
Point profile
- Code
- SP4
- Pinyin name
- Gōng Sūn
- Characters
- 公孙
- Translation
- Grandfather-Grandson
- Meridian
- Spleen
- Element
- Earth
- Classification
- Luo-Connecting, Chong Mai
- Topics
- Chong Mai, Digestion, Heart
Health notice. Educational and study content. It describes concepts of Traditional Chinese Medicine and does not replace diagnosis or treatment by a healthcare professional. Needling, medicinal herbs and invasive techniques must be applied by trained professionals. Safety guide.
