Jianjing (GB21)
Jianjing (GB21), “Shoulder Well”, is a point on the Gallbladder meridian. It is point 21 of the 44 on the channel. Activates Gallbladder channel in the shoulder, relaxes neck and shoulder muscles, descends Liver Yang.

Location
At the highest point of the shoulder, at the midpoint of the line between the spinous process of C7 and the acromion.
Functions according to tradition
Activates Gallbladder channel in the shoulder, relaxes neck and shoulder muscles, descends Liver Yang. The most popular point for trapezius tension from stress.
Traditional indications
- Neck and shoulder pain
- Cervical stiffness
- Mastitis
- Difficult labor
- Arm paralysis
- Stress tension
- Headache
Indications described by tradition; they do not amount to proven clinical effectiveness for each one.
What its classification means
Two or more channels meet here, so it is credited with acting on all of them.
Precautions
CONTRAINDICATED during pregnancy (may induce labor). Deep needling can cause pneumothorax.
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.
- BL60 Kunlun (Bladder): Difficult labor, Headache
- GV13 Taodao (Du Mai (Governing Vessel)): Headache
- GV18 Qiangjian (Du Mai (Governing Vessel)): Headache
- LI15 Jianyu (Large Intestine): Arm paralysis
- SI11 Tianzong (Small Intestine): Mastitis
- SI4 Wangu (Small Intestine): Headache
Point profile
- Code
- GB21
- Pinyin name
- Jiān Jǐng
- Characters
- 肩井
- Translation
- Shoulder Well
- Meridian
- Gallbladder
- Element
- Wood
- Classification
- Crossing point
- Topics
- Shoulder, Neck, Stress
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.