SP15 Great Horizontal

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

SP15 (Dàhéng, “Great Horizontal”) is an acupuncture point on the Spleen Channel Meridian. It is located on the abdomen, at the level of the umbilicus, 4 cun lateral to the anterior midline. It regulates the intestines, resolves dampness.

Location

On the abdomen, at the level of the umbilicus, 4 cun lateral to the anterior midline.

Needling

Perpendicular insertion 1-1.5 cun. Caution for peritoneum.

TCM functions

Regulates the intestines, resolves dampness.

Indications

Abdominal pain, diarrhea, constipation, dysentery.

Clinical notes

SP15 is a key point for regulating the intestines and resolving dampness, making it highly effective for various bowel disorders. It is particularly indicated for chronic constipation, diarrhea, and dysentery, especially when there is a feeling of heaviness or distention in the abdomen. Its name, 'Great Horizontal,' reflects its broad influence on the horizontal flow of qi in the abdomen, making it useful for both excess and deficiency patterns affecting intestinal function. It is often used with ST25 to address intestinal stagnation and pain.

On the Spleen Channel channel

SP15 is one of 21 points on the Spleen Channel Meridian. Nearby points:

Frequently asked questions

Where is SP15 located?

SP15 (Dàhéng) is located on the abdomen, at the level of the umbilicus, 4 cun lateral to the anterior midline.

What is SP15 used for?

SP15 regulates the intestines, resolves dampness. Common clinical indications include abdominal pain, diarrhea, constipation, dysentery.

How is SP15 needled?

Perpendicular insertion 1-1.5 cun. Caution for peritoneum.

Which meridian is SP15 on?

SP15 is a point on the Spleen Channel Meridian (Zú Tài Yīn Pí Jīng).

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.