SP15

Spleen Channel

Great Horizontal

大横Dà Héng

Use caution during pregnancy

Abdominal flank at the level of the navel; shallow needling.

Anatomical location

On the abdomen, 4 cun lateral to the center of the navel, at the same level, on the mamillary line.

Main function

Strengthens the Spleen and resolves Dampness, regulates the intestines and Qi, relieves pain.

  • Crossing point with the Chong Mai

Therapeutic indications

  • Abdominal pain and distension
  • diarrhea
  • dysentery
  • constipation
  • general fatigue
  • abdominal pain
  • heaviness of the body
  • sadness

Name and classical tradition

Daheng, 大横, is the “Great Horizontal.” 大 means large or broad; 横 (橫) means horizontal or transverse. Modern textbooks explain it by the movement of Qi, which at this point would travel horizontally rather than up or down. The point lies at the level of the navel, on a transverse line, and that position is perhaps the simplest reading, although no ancient source states it.

The Zhenjiu Jiayi Jing (Systematic Classic of Acupuncture and Moxibustion) gives it an entry in the work’s characteristic formula: “大橫,在腹哀下三寸,直脐旁,足太陰、陰維之會。刺入七分,灸五壯”. Daheng is three cun below Fuai, level with the navel, beside it; it is the meeting point of the foot Taiyin and the Yin Wei Mai. Needle to a depth of seven fen and apply five cones of moxa. The quotation comes from a secondary source and should be checked.

It has two alternative names, 人横 and 肾气. The latter has no connection with the general concept of Kidney Qi or with the points of that channel: it is only an alias for this Spleen point.

Location of point SP15, Great Horizontal
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View point on the 3D modelSP15 on the anatomy
Needling techniquePerpendicular insertion 1-1.5 cun.
Depth1-1.5 cun
MoxibustionApplicable (5-15 minutes, indirect moxa)

Basic formulas from the vademecum · 2

View the vademecum

Named functional sets from the school: here the point does not act on its own, but through the role it plays within the maneuver.

  • Open the Water PassagesPregnancyClears the course of the water from top to bottom: CV9 separates the fluids, SP15 and ST25 open intestinal transit, TE3 mobilizes the Triple Energizer as a waterway, CV3 commands the Bladder, and BL67 closes the channel at its extremity.
  • Separate the Pure from the ImpureThe Small Intestine's own function, triggered from the abdomen: CV6 as the sea of Qi, with SP15 and ST25 (the Front-Mu point of the Large Intestine) acting on transit. It returns what is usable to the body and sends what is not toward the exit.
Cover of the guide “Protocols for the 20 most common patterns”

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Protocols for the 20 patterns you see most in practice

Each pattern with its tongue, its pulse, the treatment principle and the points to tonify and disperse. Made for the treatment table, not the bookshelf.

Do you use SP15 with your patients?

In the Clinic you record it in the patient's file, next to the tongue, the pulse and the measurements, so at the next session you know exactly what you used. The Atlas is built in.

See the Clinic