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Alternate names: 足厥阴所流 zú jué yīn suǒ liú,

Channel: LR, Foot Reverting Yīn (jué yīn) Liver Channel

Modern location: An acupoint located on the dorsal aspect of the foot, proximal to the margin of the web between the first and second toes, level with the metatarsophalangeal (mtp) articulation of the first toe.

Classic location: On the web of the great toe, in the depression where the pulsating vessel may be sensed through palpation. (Zhēn Jiǔ Dà Chéng)

Local anatomy: The dorsal venous network of the foot and the first dorsal digital artery and vein. The site where the dorsal digital nerves split from the deep peroneal nerve.

Action: Drains liver fire; cools blood heat; clears the lower burner; extinguishes wind; courses the vessels and quickens the network vessels; clears heat and drains fire; rectifies qì.

Modern indications: Headache; dizzy vision; painful red swollen eyes; clear-eye blindness; deviated mouth; rib-side pain; mounting qì (shàn qì, inguinal hernia); inhibited urination; flooding and spotting; menstrual pain; vaginal discharge; epilepsy; wind stroke.

Classic indications: White turbidity; dispersion-thirst; fullness beneath the rib-side; retching counterflow; throughflux diarrhea (dòng xiè); cough and counterflow; swollen knees; lumbar pain; abdominal pain; fullness below the heart; retching of blood; chest and back pain; throat impediment (hóu bì); liver disease; fecal incontinence in children and the elderly; smaller abdominal swelling; mounting (shàn) pain.

Needle stimulus: Needling: 0.3‒0.6 cùn perpendicular insertion, or oblique insertion angled slightly towards the heel. Moxa: 3 cones; pole 5‒15 min.

Needle sensation: Localized distension.

Point groups: Spring (yíng) (fire) point.

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