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1. Dadun (Jing-Well Point)
Location: At the tip of the great toe and within the tuft of hair distal to the nail.
Indications & Treatments: Sudden heart pain. Sweating. Abdominal distension, swelling, and internal heat with a desire to sleep. Five types of strangury and seven types of hernia. Frequent urination with incontinence. Genital pain radiating to the lower abdomen. Uterine prolapse. Metrorrhagia and corpse-like syncope (a coma resembling death).
Acupuncture & Moxibustion: Puncture 0.1 cun. Moxibustion 3 moxa cones.
Commentary: My late teacher, Mr. Xu Zhizhi, stated that Dadun is located on the medial side of the tip of the great toe, where the flesh is thick and mound-like. It is a common error to mistake the location of Dadun for Yinbai. In cases of long-standing Shanghan disease where heat enters the Jueyin channel, puncturing Dadun until bleeding occurs yields immediate results. According to the verified acupoint methods, Dadun is at the end of the great toe, about the width of a leek leaf away from the nail corner and within the hair tuft. Generally, three meridians pulse at the great toe: Yangming is superior, Jueyin is intermediate, and Taiyin is inferior (in vulgar editions, Taiyin is erroneously written as Shaoyin). Yangming is abundant in Qi and Blood, meeting with the Liver and Spleen channels at the great toe; hence, tufts of hair grow on the toe, called "Sanmao" (Three Tufts). The area between the Sanmao is not Dadun. Examining the Foot-Shaoyang channel, it intersects with the Foot-Jueyin, branches onto the dorsum of the foot, enters the great toe, emerges from the tip, passes through the nail, and exits into the Sanmao. This proves that the classic's mention of "within the Sanmao" refers to the path from the anterior hairline of the great toe to the tuft, passing along the lateral side of the toe to the mound-like fleshy elevation. The point lies between the toe tip and the hair tuft, named Dadun, matching its name and reality. Later practitioners often puncture Dadun within the tufts of the great toe with shallow insertion, which is incorrect.

2. Xingjian (Ying-Spring Point)
Location: In the depression of the pulsating artery, 0.5 cun posterior to the web margin between the first and second toes.
Indications & Treatments: Vomiting, hiccups, and hemoptysis. Chest and heart pain. Abdominal and hypochondriac distension. A sallow complexion resembling death. Stroke. Facial paralysis. Dry throat, irritability, and thirst. Blepharoptosis with aversion to light, lacrimation. Sighing. Epilepsy and shortness of breath. Hepatic accumulation (Feiqi). Malaria. Profuse diarrhea and enuresis. Urinary retention, metrorrhagia, and leukorrhea. Cold hernia. Lower abdominal pain, lumbar pain with inability to flex or extend. Pediatric convulsions.
Acupuncture & Moxibustion: Puncture 0.3 cun. Moxibustion 3 moxa cones.
Commentary: Xingjian is the Ying-Spring point of the Foot-Jueyin Liver channel. It transitions from Dadun into the interdigital space between the first and second toes. "Xing" implies walking (composed of two halves meaning steps), and since the two toes meet, it is named Xingjian.

3. Taichong (Shu-Stream Point)
Location: In the depression 2 cun proximal to Xingjian.
Indications & Treatments: Consumption with hematemesis. Fearfulness and Qi deficiency. Vomiting, hiccups, and chills. Liver malaria. Lumbar pain. Dry throat. Hypochondriac fullness and distension. Sighing. Edema. Lower abdominal fullness. Lumbar pain radiating to the lower abdomen. Cold feet or difficulty in defecation and urination. Genital pain and enuresis. Loose stools and dysuria. Lower abdominal hernial qi. Scrofula (Madaoyang) in the axilla. Ankle soreness and pain. Amenorrhea in women. Persistent metrorrhagia. Acute pediatric hernia.
Acupuncture & Moxibustion: Puncture 0.3 cun. Moxibustion 3 moxa cones.
Commentary: Taichong is the Shu-Stream point of the Foot-Jueyin Liver channel. The Liver stores Blood; when the Taichong vessel is vigorous in women, menstruation arrives on time. Taichong is also the Yuan-Source point among the Twelve Original Points. It is the thoroughfare where the Five Zang organs receive the essence from the water and grain of the Six Fu organs; hence, it is named Taichong.

4. Zhongfeng (Jing-River Point)
Location: 1.5 cun anterior to the medial malleolus, in the depression. Turning the foot inward causes stagnation (Wan); extending the foot promotes flow. Shaking the foot reveals the point.
Indications & Treatments: Malaria with a sallow complexion resembling death. Frequent sighing and chills. Difficulty in defecation. Painful and swollen urination. Five types of strangury. Loss of appetite. Numbness of the body. Cold hernia and flaccidity. Tendon spasms. Seminal emission and retraction of the penis into the abdomen. Radiating pain. Low-grade fever.
Acupuncture & Moxibustion: Puncture 0.4 cun. Moxibustion 3 moxa cones.
Commentary: Zhongfeng is the Jing-River point of the Foot-Jueyin Liver channel. Most acupuncture texts state Zhongfeng is 1 cun anterior to the medial malleolus, but the *Ling Shu: Ben Shu* chapter states 1.5 cun. This is because *Ling Shu* is based on bone measurements; references to anterior/posterior or superior/inferior to the malleolus are calculated from the center of the malleolar bone. The malleolus is 1 cun long, and the distance from the center to the lateral edge is 0.5 cun. Later acupuncture measurement standards excluded this 0.5 cun central-to-edge distance, thus stating 1 cun. Although the descriptions differ, the location is the same. The point lies in the depression anterior to the malleolus, enclosed by two large tendons, hence named Zhongfeng (Middle Enclosure). When the foot is dorsiflexed, Qi stagnates; when extended, Qi flows smoothly. Shaking the foot separates the two large tendons on the dorsum, revealing the point. Among the sixty-plus points in *Ben Shu*, this point has the most detailed description regarding acquisition, indicating it is difficult to locate. ("Wan" is pronounced "Yu" and means the same.)

5. Ququan (He-Sea Point)
Location: Inferior to the medial condyle of the tibia and superior to the large tendon. Obtained by flexing the knee.
Indications & Treatments: Hernia. Pain in the medial thigh. Difficulty in urination. Shortness of breath. Dysentery with pus and blood. Hypochondriac and abdominal fullness. Knee pain and tendon spasms. Inability to lift the limbs. Inability to flex or extend. Wind-consumption and seminal emission. Severe body pain. Cold knees and shins. Penile pain. Excess patterns manifest as fever, eye pain, anhidrosis, blurred vision, mania, epistaxis, wheezing, and pain radiating to the throat. In women: uterine prolapse, lower abdominal pain, pruritus vulvae, and blood masses.
Acupuncture & Moxibustion: Puncture 0.6 cun. Moxibustion 3 moxa cones.
Commentary: Ququan is the He-Sea Water point of the Foot-Jueyin Liver channel. A water source that is high and has a distinct origin is called a "Quan" (Spring). The point is located below the medial tibial condyle and above the large tendon. Flexing the knee is required to access this point, hence named Ququan.