What Shuifen does
Shuifen 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
- Opens water passages and treats Oedema Harmonies the Intestines
Location
One cun measured from the landmark shown in the diagram and the location text, on the midline of the abdomen, 1 cun above the umbilicus.
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 navel and the lower end of the breastbone, then treat the distance between them as eight cun and divide it into equal parts. Shuifen is one cun above the centre of the navel, on the midline, which places it just above the upper edge of the umbilicus in most people. Press gently: the spot is often tender in anyone with fluid retention or loose stool, and the abdominal wall should be relaxed before the depth is judged.
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
Moxibustion is the technique the reference marks as particularly recommended: ten to twenty minutes with a stick, or five to seven cones, and up to a hundred cones in classical practice for water disease. The area is warmed until the skin flushes, with the stick kept moving, and it suits the cold, damp and deficient pictures this point is used for.
Cupping
Cupping is recorded as questionable at Shuifen. The abdomen can be cupped in some traditions, but the midline above the navel is thin and the point is used for deficiency as often as for excess, so suction here is not part of the usual approach.
Gua sha
Gua sha is recorded as questionable at this point as well. Working a board over the midline of the abdomen adds little to a point whose effect is on fluid movement inside, and the area is too soft to take the friction comfortably.
Skin uses
Shuifen lies one cun above the umbilicus and is recorded to open the water passages, treat oedema and harmonise the Intestines; its classical name comes from the idea that clear and turbid are separated at this point. The skin reasoning is indirect: fluid regulation is traditionally part of how a damp or swollen surface picture is understood, so the recorded action on water passages is the basis for considering it where fluid and Dampness are central. The classical record is about water disease, not the skin. No skin-specific classical indication is recorded for the point, and the reasoning above is therefore indirect, not trial evidence.
No skin-specific classical indication is recorded for this point. The rationale above is an indirect, traditional reading of the point, not a promise of benefit.
Point classifications
| Classification | Value |
|---|---|
| Channel | Meridian |
Classical record
For water diseases, moxa is greatly beneficial... some say needling is prohibited - if needled, water will be exhausted and the patient will die.
Classical citation for this point.
Shuifen is first recorded here under that name, with Fenshui and Zhongshou given as alternative names for the same point.
Zhen Jiu Jia Yi Jing (Systematic Classic), as recorded in the classical literature.
For food that returns soon after eating and for qi rising; for distension and fullness of the abdomen with pain around the navel, inability to eat, and muscular spasm.
Bei Ji Qian Jin Yao Fang (Essential Prescriptions Worth a Thousand Gold), as recorded in the classical literature.
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: the reference marks it as a dangerous point. Needle with care, adjust depth to the patient's build, and modify or avoid the point where a flag applies. The midline above the navel has no bony protection: the peritoneum and the small intestine lie directly beneath the skin, and in a thin patient a deep needle can reach them. Insertion is therefore kept shallow and perpendicular, and the classical warning against needling in water disease is still worth respecting. Moxibustion is the technique the old texts favour, with the stick kept moving so the skin is warmed and not burned, and pregnancy calls for caution because of the abdominal location.
Deficiency and constitution
In a depleted patient the point is worked gently and briefly. In a depleted patient moxa is preferred to needling, in short sessions with the skin checked between cones, and the abdomen is warmed rather than stimulated strongly. Where there is ascites, an enlarged organ or recent abdominal surgery the point is avoided and the case is managed medically.
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 Shuifen do in skin practice?
It is used where the skin picture includes the conditions it is used with, always as part of a combination chosen for the pattern.
How is it needled?
90° (Perpendicular). Standard depth 0.5 - 1.0 cun. De qi: Localized distension and fullness around the umbilical region. Deqi may radiate horizontally across the abdomen or vertically along the midline. Some patients report a sensation of warmth spreading through the lower abdomen.
Why is Shuifen needled so cautiously?
Only skin and peritoneum separate the point from the small intestine, and a thin patient has very little between them. The reference marks it as a dangerous point, limits needling to about one cun and perpendicular, and records that classical authors preferred moxibustion for water disease, one text even warning that a needle would exhaust the water. Practice today is careful and shallow.
What does separating clear from turbid mean?
It is the traditional description of what the small intestine does with fluid: the usable part is sent to the bladder and the residue to the large intestine. When that division fails, fluid collects as dampness, phlegm or swelling while the stool turns loose. Shuifen is used to restore the division, which is why it appears in formulas for both oedema and diarrhoea.
Which skin conditions call for Shuifen?
Those where fluid has collected under the skin: puffiness, oedema of the limbs or face, and the boggy or weeping quality that comes with dampness. The point is not chosen for the skin itself but for the fluid movement behind it, and it is used with spleen points such as Pishu and Sanyinjiao. Dry, scaly skin with no fluid retention is a different picture.
Is Shuifen safe in pregnancy?
The reference advises caution rather than prohibition. The point sits on the abdominal midline, and treatment in that area is avoided or kept very gentle during pregnancy, especially in the first months. Moxibustion here would also be a practitioner decision, and any abdominal pain in pregnancy needs medical assessment first.