What Kunlun does
Kunlun is treated here as a practical point rather than a curiosity: where it sits, how it is needled, what the tradition says it does, and the skin conditions in this database that name it.
Actions
- Removes obstructions from the Channel and benefits the back
- Pacifies Interior Wind and subdues Rebellious Qi from the head
- Clears Heat
- Induces labour
Location
The written location is summarised from the classical record; use the landmark named there together with the diagram.
How to find it
Find the bony landmark first, then feel for the hollow or tender spot the location describes. The point is usually sensitive when pressed. Find the tip of the lateral malleolus, the hard prominence on the outside of the ankle, then slide the thumb horizontally toward the thick cord of the Achilles tendon. The point lies in the soft depression that appears just in front of the tendon, roughly level with the highest point of the malleolus. Have the foot relaxed and slightly pointed, since a tensed calf hides the hollow. In a thick ankle the gap is shallow, so press gently and compare both sides, and remember that the small saphenous vein often runs through this hollow.
Deqi
De qi at this point is felt as local distension, heaviness or aching, and may travel a short way along the channel.
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 Depth: Standard depth half a to one cun. Direction: Needle in the direction the location describes.
Moxibustion
Recommended, five to ten minutes, and particularly useful for the chronic, cold and deficient back for which the point is chosen. The classical records no caution beyond those attached to needling, so the pregnancy restriction applies to moxa as it does to the needle, and strong heat is not applied to an inflamed ankle.
Cupping
Questionable at the point. The ankle is bony and the hollow behind the malleolus is small, so a cup does not sit well; when cupping is used for a Taiyang pattern it belongs over the paravertebral muscles rather than here.
Gua sha
Questionable. The skin over the malleolus and the tendon is thin and the tendon lies close beneath it, so scraping is more likely to irritate than to help. Any gua sha for a Taiyang pattern is better placed on the upper back and neck.
Skin uses
- Lockjaw Eye pain Red eyes Epilepsy Sciatica Head heat Headaches Dizziness Back pain Neck pain Stiff neck Bloody nose Eye swelling Occiput pain Shoulder pain Upper back pain Difficult labour Chronic back pain Placenta retention
Point classifications
| Classification | Value |
|---|---|
| Five phase | Fire-Huo |
| Transporting type | River-Jing Point |
| Mother-child role | Child (Reducing) |
| Classical groups | Ma Dan Yang Heavenly Star |
Combinations
Heel pain and ankle swelling
BL-60 Kunlun + KI-3 Taixi + GB-40 Qiuxu + SP-6 Sanyinjiao
A traditional technique needles from Kunlun through toward Taixi, which lies on the opposite side of the Achilles tendon, linking the Bladder and Kidney channels. The four points together treat heel pain and a swollen ankle, and strengthen the Kidney for feet that give way with fatigue.
Classical record
The A-B Classic gathers the indications in one breath: malaria with profuse sweating, a lumbar region that will neither bend forward nor backward, eyes that feel about to fall out, and a neck that feels pulled. It is a compact portrait of the whole Taiyang channel in trouble.
Zhen Jiu Jia Yi Jing (A-B Classic of Acupuncture)
The verse describes knotted muscle and a painful coccyx, breath that is short with fullness rushing to the heart, a patient who cannot walk and groans at every movement, and it ends by saying that relief comes from this point. It is the clearest statement in the reference of Kunlun as a point for the whole painful back.
Ci Jiu Xin Fa Yao Jue (Essential Teachings on Needling and Moxibustion)
Safety
Who should treat this point
Acupuncture and moxibustion are practitioner procedures. This page is educational and is not a guide to self-treatment.
Caution
Safety flags: contraindicated or restricted in pregnancy. Needle with care, adjust depth to the patient's build, and modify or avoid the point where a flag applies. At Kunlun the pregnancy flag is absolute rather than advisory, and the reason is recorded in the old texts themselves: the point moves blood strongly enough to end a pregnancy, and it is used at term only to start labour deliberately. Menstruation is a lesser version of the same caution, since a heavy flow can increase. The small saphenous vein passes through the hollow behind the malleolus, so a deep or repeatedly manipulated needle can produce a haematoma, and the needle is kept within the stated depth.
Deficiency and constitution
In a depleted patient the point is worked gently and briefly. That fits Kunlun especially well, since the point is chosen for chronic back pain from Kidney deficiency rather than for acute injury, and heavy reduction would leave such a patient weaker. Moxibustion suits this pattern better than vigorous needling, the session is kept short, and the point is supported with tonifying points on the lower back and the Kidney channel. The patient is asked to move the back afterwards to judge the response.
Before treatment
Educational reference only. Skin that is spreading, painful, blistering or accompanied by fever needs medical assessment.
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
What does Kunlun do in skin practice?
It is used where the skin picture includes lockjaw eye pain red eyes epilepsy sciatica head heat headaches dizziness back pain neck pain stiff neck bloody nose eye swelling occiput pain shoulder pain upper back pain difficult labour chronic back pain placenta retention, always as part of a combination chosen for the pattern.
Is Kunlun safe in pregnancy?
No. The classical texts are explicit that needling here can end a pregnancy, and the prohibition is one of the strongest in the acupuncture literature. The only exception is a practitioner using the point deliberately at term to start labour, and even then it is not a self-treatment.
How does it differ from Weizhong BL-40?
Both are Bladder channel points used for the back, but they are chosen for different patients. Weizhong, behind the knee, suits acute excess pain with heat and swelling, while Kunlun suits chronic pain from deficiency, where the back is stiff, cold and easily tired.
Why is it called a command point for the back?
The reference lists Kunlun as a command point for the back, one of a small group of distal points held to have a particular influence on a region of the body. The role is not exclusive: it is used alongside Weizhong and the local back points rather than instead of them.
Can it really bring on labour?
The tradition says it can, by invigorating the blood and descending qi, and that claim is the reason for the pregnancy contraindication rather than a reason to try it at home. Induction belongs in a maternity setting, where the stage of pregnancy and the safety of mother and baby can be judged.