Erjian (LI2)
Erjian (LI2), “Second Space”, is a point on the Large Intestine meridian. It is point 2 of the 20 on the channel. Ying-Spring of the Large Intestine: drains channel Heat in the face and throat.
Location
In the depression distal to the radial side of the second metacarpophalangeal joint, at the border between the red and white skin.
Functions according to tradition
Ying-Spring of the Large Intestine: drains channel Heat in the face and throat.
Traditional indications
- Toothache
- Sore throat
- Nosebleed
- Blurred vision
- Fever
Indications described by tradition; they do not amount to proven clinical effectiveness for each one.
What its classification means
Second of the five transport points: the Qi “glides”. Tradition reserves it mainly for heat in the channel itself.
Precautions
No specific precautions are described beyond the general ones for acupuncture. Needling must always be performed by a trained professional.
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.
- SI2 Qiangu (Small Intestine): Fever, Sore throat
- TE1 Guanchong (San Jiao (Triple Burner)): Fever, Sore throat
- SI1 Shaoze (Small Intestine): Fever, Sore throat
- SI5 Yanggu (Small Intestine): Fever, Toothache
- ST44 Neiting (Stomach): Fever, Toothache
- TE9 Sidu (San Jiao (Triple Burner)): Sore throat, Toothache
Point profile
- Code
- LI2
- Pinyin name
- Èr Jiān
- Characters
- 二间
- Translation
- Second Space
- Meridian
- Large Intestine
- Element
- Metal
- Classification
- Ying-Spring
- Topics
- Fever, Face, Throat
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.
