Lingquan is an acupuncture point of human body, belonging to the spleen meridian of Foot Taiyin, located between the posterior edge of the medial tibia of calf and gastrocnemius muscle, and at the starting point of soleus muscle. Yinlingquan mainly regulates spleen and kidney function,

Spleen controls moisture transport, kidney and body fluid are dominant, spleen and kidney are weak, water can not be excreted, and limbs are edema. Pressing this acupoint can strengthen the spleen and kidney, drain and dehumidify. Moxibustion at Yinlingquan can dredge waterways and treat dysuria, edema, dysmenorrhea, irregular menstruation and leucorrhea with red and white discharge.