source point.

[Origin]

He, get together; the gathering of flesh is "grain". The point is where the thumb and index fingers meet, hence its name.

[Location]

Heguacupoint cross section
(quoted from "Yan Zhenguo acupoint anatomy")

Hegu (LI4) acupoint
(quoted from "Meridians and Acupoints")

Between the 1st and 2nd metacarpal bones on the back of the hand, at the midpoint of the radial side of the 2nd metacarpal bone.

• Lingshu‧Benshu: "Between the distal bones of the big finger";
• Zhenjiu Jiayi Jing: "On the big finger, times Between your fingers".
• Qianjin Yifang: "The head is vertically tattooed behind the purlicue, and the straight fingers are taken from the Wanwan center."
• Xunjing Kaoxue Bian: "It is appropriate to combine the two On the finger, take the pattern as high as the flesh, and press the needle with a fist. "On the second joint of the big finger, on the tip of the flesh." That is, the thumb and index fingers. When merged, the purlicue is the highest point of the bulge. Or the distal cross-digital crease on the thumb surface of one hand is superimposed on the edge of the finger web of the purlicue part of the other hand, where the tip of the thumb stops when the thumb is bent.

[Anatomy]

• Muscles: The first dorsal interosseous muscle, the deep layer is the transverse head of the adductor pollicis muscle, and the muscle spindles are densely packed in the muscle layer.
• Nerve: The superficial branch of the radial nerve is the dorsal branch of the hand, and the deep layer is the palmar proper nerve of the median nerve.
• Blood vessels: There is the radial part of the dorsal hand venous network (the beginning of the cephalic vein) in the subcutaneous tissue, and the first dorsal metacarpal artery is located on the radial edge of the second metacarpal bone. In the middle layer, close to the divergence of the bases of the first and second metacarpal bones, the radial artery runs from the back of the hand to the deep part of the palm. The main pollicis artery arises from the radial artery and runs between the first dorsal interosseous muscle and the adductor pollicis muscle.

[Manipulation]

The hand is in the shape of a semi-clenched fist, with perpendicular insertion or slightly upward oblique insertion 0.5-1 cun, or deep to the little finger side under the metacarpal bone. Care should be taken to prevent puncturing the artery, and during deep penetration, it is necessary to prevent puncturing the deep palmar arterial arch to avoid bleeding. If the branch of the cephalic vein in the superficial tendon membrane on the dorsal side is punctured, a hematoma may form in the superficial tendon membrane. If the radial artery or the main pollicis artery is injured, it can cause contracture of the first dorsal interosseous muscle or the adductor pollicis muscle and cause deformity. Acupoint injections are not suitable, especially highly irritating liquids. Even if the dose is not large, they can cause chemical inflammatory reactions, local exudation and bleeding, leading to increased localized intramuscular pressure, muscle fiber necrosis, muscle fibrosis, and formation of contracture. Superficial cases can cause contracture of the first dorsal interosseous muscle, while deep cases can cause contracture of the adductor pollicis muscle, or both muscles may be affected at the same time. Injection around the radial artery or the main thumb artery can cause arterial spasm and arteritis, causing ischemic contracture of the adductor pollicis muscle and the first dorsal interosseous muscle.

dispersing external wind, relieving stuffy orifices, clearing lung qi, harmonizing the stomach and intestines, regulating menstruation and inducing labor.

• Classical: apoplexy, stuttering, crooked mouth and eyes, Rebing inability to sweat, excessive sweating, amenorrhea, headache, eye nebula, eye pain, epistaxis, deafness, toothache, floating face, pharyngitis, finger spasms, arm pain, scabies, Hanre malaria, madness, muteness, rubella, heart pain, partial head wind, malnutrition involving eye (keratomalacia) in children, disease caused by cold Severe thirst, fever, headache, strong spine, infantile breast cancer, dead fetus, early abortion, infantile nyctalopia, constipation, dysentery, summerheat stroke, mumps, and various pain symptoms.
• Modern: common cold, epidemic common cold, facial nerve paralysis, hemifacial spasm, trigeminal neuralgia, dental neuralgia, pharyngitis, tonsillitis, dysphagia, neurasthenia, hysteria, forearm neuralgia, bronchitis, asthma, Temporomandibular joint dysfunction, rhinitis, dysmenorrheal, amenorrhea, prolonged labor, maternal uterine weakness, postpartum lactation, simple goiter, indigestion in children, acute pancreatitis, membrane inflammation, electronic ophthalmia, arthralgia.

[Recipe]

• common cold or electronic ophthalmia: Fengchi (GB20), Hegu (LI4).
• disease caused by cold headache: Zanzhu (BL2), Taiyang (EX-HN5), Hegu (LI4).
• stuffy nose, nasal polyp and sinusitis: Hegu (LI4), Taichong (LR3).
• epistaxis: Shangxing (GV23), Hegu (LI4).
• toothache: Xiaguan (ST7), Jiache (ST6), Hegu (LI4).
• Throat swelling and pain, occlusion, and water droplets: Hegu (LI4), Shaoshang (LU11).
• difficult delivery: Hegu (LI4), Sanyinjiao (SP6).
• Herpes zoster: Quchi (LI11), Hegu (LI4), Xuehai (SP10), Sanyinjiao (SP6) .
• Less sweating: Hegu (LI4) (replenishment), Fuliu (KI7) (relaxation).
• Excessive sweating: Hegu (LI4) (laxative), Fuliu (KI7) (supplementary).
• cold malaria Facial swelling and bowel sounds: Hegu (LI4), Neiting (ST44).
• Simple or toxic dyspepsia in children: Hegu (LI4), Zusanli (ST36), Sanyinjiao (SP6).
• Acute pancreatitis: Neiguan (PC6), Hegu (LI4), Zusanli (ST36).
• Hanre Paralysis: Hegu (LI4), Taichong (LR3).