Jing-well (wood) point. Lingshu‧Genjie: "The root of Jueyin is at Dadun (LR1)."

bubble_chart Etymology

"Da" (大), big; "dun" (敦) means thick or substantial, referring to the shape of distal segment of big toe, which resembles a round, covered vessel (an ancient bronze vessel used for holding grain).

bubble_chart Location

Dadun (LR1) acupoint (改編自"Meridians and Acupoints")

• Lingshu‧Benshu: "At the tip of big toe and among the three hairs";
• Zhenjiu Jiayi Jing: "One leek leaf width from the corner of toenail and among the three hairs";
• Zhenjing Zhaiying Ji: "On the lateral side of the tip of big toe." Specifically, on the lateral side of big toe, 0.1 cun posterior to the lateral corner of toenail, in the depression.
• Zhenjiu Jicheng: "0.4 cun posterior to the root of toenail, anterior to the joint." This locates the point on dorsum of big toe, between toenail root and toe joint, near the cluster of hairs (three hairs). For moxibustion, this location can be used.

bubble_chart Anatomy

• Nerve: dorsal digital nerve of deep peroneal nerve.
• Vessels: dorsal digital arteries and veins.

bubble_chart Manipulation

Shallow insertion 0.2 to 0.3 cun or prick to bleed. Commonly used with warm moxibustion for 5 to 10 minutes or indirect moxibustion with a cake for 3 to 5 cones. Leijing Tuyi: "Moxibustion is not suitable for pregnant women before or after childbirth."

bubble_chart Efficacy

Soothe liver and treat hernia, regulate blood, clear spirit.

• Classical: fainting, sudden hernia with severe pain, periumbilical pain, abdominal distension, heat in lower abdomen, urolithic stranguria, hematuria, difficulty urinating, enuresis, seminal emission, swelling and pain of genitals, retracted scrotum, prolapse of uterus, menorrhagia and metrostaxis, fullness below ribs, dizziness, excessive sleepiness, aversion to look, sudden heart pain, frequent sighing, hiccups, constipation, hiccups, epilepsy, infantile convulsion, spasm, stiff limbs, foot swelling.
• Modern: dysfunctional uterine hemorrhage, prolapse of uterus, inguinal hernia, hydrocele of scrotum, varicocele, epididymo-orchitis, prolonged labor.

bubble_chart Combinations

• Cold hernia: Dadun (LR1), Zhaohai (KI6).
• Pain due to intestinal hernia: Changqiang (GV1), Dadun (LR1).
• Hard hernia and hernia qi: Qimen (LR14), Dadun (LR1).
• Seven types of hernia: Taichong (LR3), Dadun (LR1).
• Five types of strangury: Dadun (LR1), sweat pore.
• Urine as red as blood: Guanyuan (CV4), Dadun (LR1).
• Prolonged labor: Dadun (LR1), Zhiyin (BL67).
• Hernia: moxibustion Dadun (LR1), Sanyinjiao (SP6).
• Intestinal hernia: Qihai (CV6), Guilai (ST29), Dadun (LR1).