GB-21 Jianjing
GB-21 Jianjing (肩井) is a point on the Gallbladder meridian. In TCM theory it is described as influencing the channel's qi, and it is traditionally used in the context of the whole pattern rather than as a stand-alone remedy. This page explains how to locate it, what the tradition says about it, and how to press it safely.
Location
At the midpoint of the line between the spinous process of C7 and the acromion, on the top of the shoulder.
How to find it
Find the bony bump at the base of the neck (C7) and the outer tip of the shoulder. The point is halfway between them, in the meaty top of the shoulder.
Traditional functions
- Relaxes the sinews and moves qi
- Benefits the shoulder and neck
- Descends qi
Traditional uses
- Shoulder and neck tension
- Headache
- Breast discomfort in some traditional texts
- Stress held in the shoulders
How to press it
Squeeze the shoulder gently between the thumb and fingers for 1 minute, then switch sides.
Acupressure is generally a gentle practice. Use the pad of the thumb or finger, start with light pressure, and increase only to a comfortable level. A mild ache or warmth is common; sharp pain is a signal to ease off.
Safety
Strong pressure at GB-21 is traditionally avoided during pregnancy. Avoid pressing on an acute shoulder injury.
How this is viewed today
GB-21 is used in trials for neck and shoulder pain, often with local massage. Evidence is limited.
Sources & further reading
- Huangdi Neijing (黃帝內經), c. 2nd century BCE.
- Nanjing (難經), c. 1st–2nd century CE.
- World Health Organization, Standard Acupuncture Nomenclature, 2nd ed., 1991.
- Deadman P, Al-Khafaji M, Baker K. A Manual of Acupuncture. Journal of Chinese Medicine Publications.
- National Center for Complementary and Integrative Health, Acupuncture: What You Need To Know.
Related: Gallbladder meridian · Acupoint library · GB-20 Fengchi · SI-11 Tianzong · TB-5 Waiguan · all twelve meridians