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Alternate names: 童玄 tóng xuán, Child Mystery; 腕劳 wàn láo, Wrist Taxation

Channel: LU, Hand Greater Yīn (tài yīn) Lung Channel

Modern location: An acupoint located 1.5 cùn proximal to the wrist, in a crevice on the lateral edge of the radius just proximal to the styloid process.

Classic location: One and a half cùn from the wrist. When the thumb and index finger of one hand are interlocked with those of the other, the point lies on the edge of the index finger, in a depression between the sinew and bone. (Zhēn Jiǔ Dà Chéng)

Local anatomy: The cephalic vein, branches of the radial artery and vein. The lateral antebrachial cutaneous nerve and the superficial ramus of the radial nerve.

Action: Diffuses the lung and dispels cold; courses the channels and frees the network vessels.

Modern indications: Wind damage; headache and stiff nape; cough; panting; painful swollen throat; deviated eyes and mouth; clenched jaw; toothache; lack of strength in the wrist.

Classic indications: Headache; hemiplegia; enuresis and frequent urination; pain in the arm and elbow; child fright epilepsy (jīng xián); pain in the penis; bloody urine; seminal loss; unquiet sleep; generalized wind impediment (fēng bì) with numbness and tingling; heat effusion with aversion to cold; tension in the chest and back; throat impediment (hóu bì); heat in the palms; reverse flow of the limbs; toothache; malarial disease; heat and pain in the shoulder and back.

Needle stimulus: Needling: 0.2‒0.4 cùn oblique insertion toward elbow. Moxa: 3‒5 cones; pole 5‒10 min.

Needle sensation: Localized twinge and distension.

Point groups: Network point (luò xué); confluence point (bā mài jiāo huì xué) of the controlling vessel; command point (sì zǒng xué) of the head and nape; one of Mǎ Dān-Yáng's twelve heavenly star points.

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