Luo-connecting point.

bubble_chart Etymology

"Da" (大), big; "zhong" (鐘), "heel", meaning "the place where the body gathers" (as seen in Shiming). The point is located in the center of heel, hence the name

bubble_chart Location

Dazhong acupoint
(quoted from "Meridians and Acupoints")

• Lingshu‧Jingmai: "Behind the ankle, circling the heel, branching to taiyang meridian";
• Zhenjiu Jiayi Jing: "In the center of back of heel";
• Suwen‧Ciyaotong PianWang Bing's note: "In the center of back of heel, where artery pulsates";
• Yixue Rumen: "5 fen below Taixi (KI3)";
• Zhenjiu Jicheng BOOK>: "1.5 cun posterior to Zhaohai (KI6)".

bubble_chart Anatomy

• Muscles: Posteriorly, plantar tendon and Achilles tendon.
• Nerves: medial cutaneous nerve of leg and medial calcaneal branch of tibial nerve.
• Vessel: medial calcaneal branch of posterior tibial artery.

bubble_chart Manipulation

Perpendicular insertion 0.3～0.5 cun. Moxibustion with moxa cone 3 to 5 times, moxibustion with moxa stick for 10 to 15 minutes.

bubble_chart Efficacy

Replenish kidney, clear heat, calm spirit.

• Classical: irritability, ischuria, lumpago, wheezing and coughing, gurgling sounds in throat, dry mouth and tongue, heat in mouth, coughing or spitting blood, abdominal fullness, difficulty in defecation, distension and fullness in chest, frequent anger, frequent fright, sore throat, dullness and dementia, reluctance to speak with excessive drowsiness, stiffness and pain in lower back and spine
• Modern: heel pain, schizophrenia.

bubble_chart Combinations

• Coughing or spitting blood in saliva: Xinshu (BL15), Rangu (KI2), Dazhong (KI4).
• Fearfulness and timidity with insufficient spirit energy: Ximen (PC4), Dazhong (KI4).
• Constipation: Shiguan (KI18), Dazhong (KI4).
• Fatigue and lethargy: Tongli (HT5), Dazhong (KI4).