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ST-31 Thigh Joint

髀关 〔髀關〕 bì guān

Channel: ST, foot yáng brightness (yáng míng) stomach channel

Modern location: An acupoint located on the upper thigh, straight below the anterior superior iliac spine (asis), in the depression on the lateral side of the sartorius muscle.

Classical location: In the crease behind the crouching rabbit [i.e., the rise of flesh in the center of the thigh]. From The Great Compendium of Acupuncture and Moxibustion (针灸大成 zhēn jiǔ dà chéng)

Local anatomy: At the deep level, the branches of the lateral circumflex femoral artery and vein. The lateral femoral cutaneous nerve.

Action: Warms the channels and quickens the network vessels; courses wind and disperses cold.

Modern indications: Lumbar pain and cold knees; wilting-impediment (wěi bì); abdominal pain.

Classical indications: Pain in the lumbus and cold in the knees; abdominal pain; numbness and tingling of the lower extremities; jaundice.

Needle stimulus: Needling: 0.5‒1.5 cùn perpendicular insertion. Moxa: 3 cones; pole 5‒15 min.

Point name meaning:

In older Chinese texts, 髀关 is an anatomical term referring to either the lateroanterior aspect of the thigh or the outer aspect of the inguinal region. The character (), translated as thigh, renders the point name as Thigh Joint, referring to its location near the joint (关) of the thigh.

Another translation of () taken to mean the lateral aspect of the groin, again locationally defines ST-31. A (guān) is a border pass; in this sense, a reference to the place where the stomach channel enters the lower abdomen. Similarly, the character () translated as inferior, combined with (guān) translated as hip joint, illustrates the point’s location below the hip or its location near the hip and in the inferior (lower) part of the body. See acupoint names: origins, meanings, and translations.

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