ST 36 — Zú Sān Lǐ (足三里) — Leg Three Miles

ST 36 (Stomach 36; Zusanli, “Leg Three Miles”) is the He-Sea (Earth) point of the Stomach meridian and arguably the most important acupuncture point in the entire body. Located 3 cun below ST 35 on the anterior lateral leg, one finger-breadth lateral to the tibial crest, it powerfully tonifies Qi and Blood, strengthens the Spleen and Stomach, supports the immune system and is the primary preventive medicine point in classical East Asian practice. Used clinically for fatigue, digestive disorders, knee pain, fertility, immune support and recovery from illness.

On this page

1. Overview
2. Location
3. Actions
4. Indications
5. Needling
6. Clinical notes
7. Common point combinations
8. Treatment at my clinic
9. Frequently asked questions about ST 36

1. About ST 36 (Zusanli)

ST 36 — Zú Sān Lǐ (足三里) — is an acupuncture point on the Stomach meridian. Its English name, Leg Three Miles, comes from the classical belief that needling ST 36 enables a tired traveller to walk an additional three miles — an enduring image of the point’s capacity to restore vitality. It is the He-Sea (Earth) point of the Stomach channel and, in classical and modern TCM practice alike, the single most important point on the body. It is used in nearly every clinical treatment in acupuncture practice.

I am Dr (TCM) Attilio D’Alberto, a member of the British Acupuncture Council with over 25 years of clinical experience. I use ST 36 as part of individually tailored acupuncture prescriptions at my clinic in Wokingham, Berkshire.

2. ST 36 location

3 cun below ST 35 (Dubi), one finger-breadth lateral to the anterior crest of the tibia. To find it: feel for the depression below the lateral edge of the patella (ST 35), measure four finger-widths (3 cun) down, then move one finger-width lateral to the shin bone. The point sits in the belly of the tibialis anterior muscle and is often tender on palpation.

3. Actions

1. Tonifies Qi and Blood — one of the most powerful tonifying points on the body
2. Strengthens the Spleen and Stomach
3. Raises the clear Yang and lifts prolapse
4. Regulates the Stomach and harmonises the Middle Jiao
5. Supports the correct Qi and expels pathogenic factors
6. Activates the meridian and relieves pain in the lower limb
7. Calms the Mind

4. Indications

1. Fatigue, weakness and general deficiency — the most important tonifying point in the body
2. Poor appetite, nausea, vomiting and epigastric pain from Stomach weakness
3. Diarrhoea and digestive disorders from Spleen Qi deficiency
4. Knee pain and lower limb weakness
5. Anaemia and post-illness recovery
6. Immune deficiency and recurrent infections
7. Chronic disease and convalescence
8. Fertility — tonifies Qi and Blood to support egg quality and uterine health

5. Needling

Perpendicular insertion 1.0–2.0 cun. Strong De Qi expected, often radiating down the leg towards the foot. Moxibustion is frequently and powerfully applied at ST 36 — this is one of the most important moxibustion points on the body, used historically for immune support and longevity.

Important: Acupuncture should only be performed by a fully qualified practitioner. Never attempt self-needling. All needles I use are sterile, single-use and disposed of immediately after treatment in a clinical sharps container.

6. Clinical notes

ST 36 is arguably the most important acupuncture point in the entire body and is used in nearly every clinical treatment. It is the He-Sea point and Earth point of the Stomach meridian, sitting at the convergence of postnatal Qi production (Spleen-Stomach) and the body’s downward-flowing Yang energy. Classical texts state that moxibustion at ST 36 prevents a thousand diseases — it was the most important preventive medicine point in traditional East Asian practice, used routinely from middle age onwards to build immunity, slow ageing and maintain digestive vigour.

In modern clinical practice it is the primary point for immune support, post-illness recovery, chronic fatigue, weak digestion and depleted blood. The combination ST 36 + SP 6 is one of the most frequently used two-point combinations in clinical acupuncture, addressing Spleen-Stomach Qi, Yin and Blood simultaneously. ST 36 is also the master point for the lower limb meridian and a key point for knee pain, particularly the chronic dull ache of Qi-deficiency knees.

7. Common point combinations

1. ST 36 + SP 6 (Sanyinjiao) — the foundational tonification pair, addressing Spleen, Liver and Kidney Yin and Qi together. Used in fertility protocols, post-illness recovery, fatigue and almost all chronic deficiency conditions.
2. ST 36 + CV 12 (Zhongwan) — the Stomach’s front-mu point paired with ST 36 for digestive weakness, IBS, chronic indigestion and post-chemotherapy nausea.
3. ST 36 + LI 4 (Hegu) — the classical four-point harmonising combination for the digestive system, regulating both stomach and intestines.
4. ST 36 + CV 6 (Qihai) — the “Sea of Qi” pair, tonifies original Qi for deep fatigue, chronic exhaustion and adrenal-pattern depletion.
5. ST 36 + PC 6 (Neiguan) — the textbook anti-emetic combination for nausea, vomiting, motion sickness and post-operative nausea.
6. ST 36 + BL 20 (Pishu) — the Spleen back-shu point with ST 36 for chronic Spleen Qi deficiency, weak digestion, soft stools and post-illness recovery.

8. Treatment at my clinic

I use ST 36 as part of tailored acupuncture prescriptions for conditions including chronic fatigue syndrome, digestive disorders, fertility, knee pain, irritable bowel syndrome, post-illness recovery and immune support. Each treatment is individually designed following a full TCM assessment.

I see patients in person at my clinic in Wokingham, Berkshire. Visit the prices page for consultation fees. Return to the acupuncture points directory or the acupuncture main page.

9. Frequently asked questions about ST 36

What are the acupuncture points ST36 used for?

The acupuncture points ST36 (Zusanli) are used to tonify Qi and Blood, strengthen the digestive system, support the immune system, treat fatigue and aid recovery from illness. ST 36 is the single most important point in classical East Asian acupuncture and is included in almost every acupuncture treatment plan. Acupuncture points ST36 are particularly used for chronic fatigue, IBS, knee pain, post-chemotherapy recovery and fertility support.

Where do you press acupressure points ST36?

To find the acupressure points ST36: feel for the depression on the outer side just below the kneecap. Measure four finger-widths (3 cun) down the leg from that point, then move one finger-width away from the shinbone towards the outside. The point sits in the muscle there and is often tender. Apply firm pressure with your thumb for 1–3 minutes. Press acupressure points ST36 on both legs for a balanced effect.

Can ST 36 help with fatigue?

Yes — ST 36 is the most important point in the body for treating fatigue. It powerfully tonifies Qi and Blood, addresses the underlying weakness of the Spleen and Stomach that often drives chronic tiredness, and is regularly used in courses of acupuncture for chronic fatigue syndrome, post-viral fatigue and adrenal-pattern exhaustion. Moxibustion at ST 36 deepens the tonifying effect.

Can ST 36 help with digestion and IBS?

Yes. ST 36 is the He-Sea point of the Stomach meridian and is the primary digestive point in acupuncture. It is used clinically for poor appetite, bloating, nausea, vomiting, epigastric pain, constipation and diarrhoea, and is one of the core points in IBS treatment. Combined with CV 12 (Zhongwan) it addresses both the Stomach and the Middle Jiao broadly.

Can ST 36 help with immunity?

Yes — classical texts describe moxibustion at ST 36 as the single most important preventive medicine point, used for centuries to build resistance to disease. Modern studies show acupuncture at ST 36 modulates immune function and reduces inflammation. Patients with recurrent colds, frequent infections or low resistance often have ST 36 included in their treatment, particularly with moxibustion through the autumn and winter months.

What does ST 36 mean in Chinese?

ST 36 is called Zú Sān Lǐ (足三里) in Chinese, which translates as “Leg Three Miles”. The classical commentary attributes the name to the belief that needling ST 36 enables a tired traveller to walk an additional three miles — an enduring image of the point’s ability to restore strength and vitality.

Is ST 36 safe during pregnancy?

Yes, ST 36 is safe and commonly used throughout pregnancy. Unlike SP 6 and LI 4, which are contraindicated, ST 36 has no uterotonic effect and is regularly used to support energy, treat nausea and maintain general wellbeing in pregnant patients.