ST39 (Xiajuxu, “Lower Great Void”) is the Lower He-Sea of the Small Intestine point of the Stomach Meridian. It is located on the anterior aspect of the lower leg, 9 cun inferior to ST36 (Dubi) and 3 cun inferior to ST37 (Shangjuxu), one finger-breadth lateral to the anterior crest of the tibia. It regulates and clears the Small Intestine, transforms Damp-Heat, alleviates pain, and calms the spirit.
On the anterior aspect of the lower leg, 9 cun inferior to ST36 (Dubi) and 3 cun inferior to ST37 (Shangjuxu), one finger-breadth lateral to the anterior crest of the tibia.
Perpendicular insertion 1.0 to 1.5 cun.
Regulates and clears the Small Intestine, transforms Damp-Heat, alleviates pain, and calms the spirit..
Small intestine qi deficiency, pale complexion, hemiplegia, leg paralysis, inability of the foot to touch the ground, heat-wind, cold-damp impediment that is unresponsive, wind-damp impediment, throat impediment, leg qi deficiency, leg heaviness, dry lips, unconscious drooling, inability to sweat, withered hair, flesh falling away, aversion to food, purulent and bloody stool, pain in the chest, ribs, and lower abdomen referring to the testicles, post-coital taxation, heat in front of the ear, severe cold, heat on one shoulder, heat and pain between the little and ring fingers, sudden fright and mania, incoherent speech, female breast abscess, inability to flex the foot, heel pain, wind-damp leg pain..
As the Lower He-Sea point of the Small Intestine, ST39 is a primary point for treating disorders of that organ, particularly Damp-Heat conditions like dysentery with pus and blood, or abdominal pain. It is also a crucial distal point for pain and motor impairment of the lower limb, such as leg paralysis, weakness, and difficulty walking. Its connection to the Small Intestine channel also explains its use for pain along the channel's pathway, such as shoulder or finger pain, and for certain psycho-emotional disorders like mania.
ST39 is one of 45 points on the Stomach Meridian. Nearby points:
ST39 (Xiajuxu) is located on the anterior aspect of the lower leg, 9 cun inferior to ST36 (Dubi) and 3 cun inferior to ST37 (Shangjuxu), one finger-breadth lateral to the anterior crest of the tibia.
ST39 regulates and clears the Small Intestine, transforms Damp-Heat, alleviates pain, and calms the spirit. Common clinical indications include small intestine qi deficiency, pale complexion, hemiplegia, leg paralysis, inability of the foot to touch the ground, heat-wind, cold-damp impediment that is unresponsive, wind-damp impediment, throat impediment, leg qi deficiency, leg heaviness, dry lips, unconscious drooling, inability to sweat, withered hair, flesh falling away, aversion to food, purulent and bloody stool, pain in the chest, ribs, and lower abdomen referring to the testicles, post-coital taxation, heat in front of the ear, severe cold, heat on one shoulder, heat and pain between the little and ring fingers, sudden fright and mania, incoherent speech, female breast abscess, inability to flex the foot, heel pain, wind-damp leg pain.
Perpendicular insertion 1.0 to 1.5 cun.
ST39 is a point on the Stomach Meridian (Zú Yángmíng Wèijīng).