“Yang” means lateral. “Gang” originally means the key link, or the commander. The point is from the Urinary Bladder Meridian of Foot-Taiyang. It is lateral to Danshu (BL19), the gallbladder point, above Weishu (BL21), the stomach point; Sanjiaoshu (BL22), the Sanjiao point; Dachangshu (BL25), the large intestine point; Xiaochangshu (BL27), the small intestine point; and Pangguangshu (BL28), the urinary bladder point. These fu organs are also known as Yang organs. The point above them acts as the commander or the key link of the fu organs, hence the name Yanggang (Key Link of Yang).
Three cun lateral to the lower border of the spinous process of the 10th thoracic vertebra.