What Zusanli does
Zusanli sits below the knee on the outer side of the shin, and it is the point the tradition reaches for whenever Qi and Blood need building. For the skin, that means two things: it supports the digestion that makes Blood, and it gives the body the strength to move Dampness and to repair the skin.
Actions
- Tonifies Qi and Blood
- Tonifies the Stomach and Spleen
- Harmonises Nutritive and Defensive Qi
- Expels Wind, Cold and Dampness from the channels
- Restores Yang and revives consciousness
- Calms the Mind
Location
Three cun below the depression just below the kneecap, one finger breadth lateral to the front edge of the shin bone, on the tibialis anterior muscle.
How to find it
Find the hollow below the kneecap and just lateral to the patellar ligament, then measure three cun down the leg. The point lies one finger breadth outside the sharp front edge of the tibia, in the meat of the muscle. Pressing it gives a strong, deep, often heavy sensation. Work with the knee slightly bent: find Dubi ST-35 in the hollow below the kneecap just outside the patellar ligament, then measure three cun straight down and one finger width outward from the crest of the tibia into the belly of the tibialis anterior. Pressing there gives a deep, heavy sensation that confirms the spot.
Deqi
Strong soreness, distension and heaviness that may spread down toward the foot or up toward the knee, sometimes with a warm or electric quality along the Stomach channel. The muscle may visibly twitch.
A cun is a proportional body measurement, not a fixed length: one cun is about the width of the thumb at the knuckle, 1.5 cun about two finger widths, and 3 cun about the width of four fingers. On an average adult one cun is roughly one inch, but it scales with the person, which is why the texts measure in cun rather than centimetres.
Technique
Needling
Angle: 90 degrees (perpendicular) or 45 degrees (oblique) Depth: 1.0 to 2.0 cun Direction: Vertically 1 to 1.5 cun
Moxibustion
Ten to twenty minutes, or three to seven cones of direct moxa, suits the deficiency and cold versions of the picture. For prevention the tradition advises direct moxibustion about every five to seven days, roughly ten minutes a session, and considers that routine most suitable for people over thirty who are already deficient.
Cupping
Used over the point and the surrounding channel for dampness and chronic stagnation.
Gua sha
Gua sha along the Stomach channel is used for chronic dryness and cold with stagnation.
Bleeding
Not standard at this point.
Skin uses
- Pale, dry, thin skin with poor healing
- Chronic eczema in a depleted person
- Dampness with heaviness and leg swelling
- Cold-type skin eruptions that improve with warmth
- Skin problems that flare with fatigue
Point classifications
| Classification | Value |
|---|---|
| Five phase | Earth (Tu) |
| Transporting type | Sea-He point |
| Mother-child role | Mother, therefore tonifying on this channel |
| Classical groups | Ma Dan Yang Heavenly Star point |
Combinations
Skin with Heat above and weakness below
Quchi clears Heat from the upper body while Zusanli anchors and supports the lower body, so the clearing does not exhaust the person.
Classical record
When pathogenic factors are in the Spleen and Stomach there is pain in the muscles. When Yang is excessive and Yin insufficient there is heat in the centre with hunger; when Yang is insufficient and Yin excessive there is cold in the centre with rumbling and abdominal pain. All should be regulated at Zusanli.
Ling Shu (灵枢, Divine Pivot).
For stubborn painful obstruction that does not go away and prolonged cold, take Sanli to drain the bone.
Ling Shu (Divine Pivot), classical citation recorded from the reference.
Zusanli lies three cun below Xiyan and between the two tendons. It reaches the heart of abdominal distension, and treats cold in the stomach, intestinal noise and diarrhoea, swelling of the leg and soreness of the knees.
Ma Dan Yang's Heavenly Star Points Song, classical citation recorded from the reference.
For the belly and abdomen, retain Zusanli.
Four Command Points Song (四總穴歌), classical citation recorded from the reference.
Safety
Who should treat this point
Acupuncture and moxibustion are practitioner procedures; this page is educational.
Caution
Use with care in pregnancy, particularly from the ninth month, as the point is traditionally considered capable of stimulating uterine contractions. Avoid deep needling in very thin patients, and keep the needle off the shin bone itself, which is painful.
Deficiency and constitution
Powerful tonification can overwhelm a very weak person. Use gentle stimulation first and build gradually, especially with moxa. Where stimulation is strong, or moxa is used, watch a very weak or markedly deficient person closely: the tonifying action is powerful and can feel overwhelming. Short sessions and gentle technique are safer than one long, forceful treatment.
Before treatment
Educational reference only. Persistent leg ulcers or skin that is not healing need medical assessment, not only acupuncture.
Modern evidence and safety
General references for acupuncture safety and skin evidence. They are not specific to this point, and they are not a claim that needling it treats any condition.
- Acupuncture-related adverse events: systematic review and meta-analyses of prospective clinical studies. BMJ Open, 2021. PMID: 34489268.
- Acupuncture for atopic dermatitis: a systematic review and meta-analysis. BMJ Open, 2024. PMID: 39638592.
- Manual acupuncture for the treatment of chronic spontaneous urticaria: a systematic review and meta-analysis. International Journal of Surgery, 2025. PMID: 40696933.
- Acupuncture in Dermatology: An Update to a Systematic Review. Journal of Alternative and Complementary Medicine, 2021. PMID: 32955916.
Evidence note
No controlled trial of this treatment in skin conditions was identified for this entry. What is described here rests on the classical and later materia medica record and on traditional clinical use, not on controlled trial evidence, and it is not a prediction of benefit. Where skin-specific research does exist it is linked above.
Common questions
Why a leg point for the skin?
Because the skin is fed by Blood, and Blood is made from what the Stomach and Spleen extract. Zusanli is the main point for strengthening that process.
Is it used in acute hot rashes?
Not as the primary point. It belongs to the chronic and deficient picture, or it is added to support the person while other points clear the acute heat.
Moxa or needle?
Both are traditional. Moxa suits cold and deficiency better; needling suits mixed patterns and channel obstruction.
Is moxa at Zusanli used to prevent illness?
The tradition uses it that way. Direct moxibustion for around ten minutes every five to seven days is the routine the tradition describes for keeping exterior pathogens out, and it is recommended in particular for people past thirty who are already deficient. It is a building technique, so it suits the cold and tired picture rather than a hot, inflamed one.