KI15 Central Flow

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

KI15 (Zhōngzhù, “Central Flow”) is the Meeting point of KI & Chong Mai point of the Kidney Channel Meridian. It is located on the lower abdomen, 3 cun inferior to the umbilicus, 0.5 cun lateral to the anterior midline. It regulates intestines, alleviates pain.

Location

On the lower abdomen, 3 cun inferior to the umbilicus, 0.5 cun lateral to the anterior midline.

Needling

Perpendicular insertion 0.8 to 1.2 cun. Caution for bladder if full.

⚠ Have the patient void first — do not needle a full bladder.

TCM functions

Regulates intestines, alleviates pain.

Indications

Abdominal pain, constipation, diarrhea, irregular menstruation.

Meeting point of KI & Chong Mai

Clinical notes

Zhongzhu, another meeting point of the Kidney and Chong Mai, primarily regulates the intestines and alleviates abdominal pain. It is effective for constipation, diarrhea, and various types of abdominal distention and pain, especially those related to Kidney qi deficiency or cold. Its name 'Central Flow' suggests its role in harmonizing the central abdominal region.

On the Kidney Channel channel

KI15 is one of 27 points on the Kidney Channel Meridian. Nearby points:

Frequently asked questions

Where is KI15 located?

KI15 (Zhōngzhù) is located on the lower abdomen, 3 cun inferior to the umbilicus, 0.5 cun lateral to the anterior midline.

What is KI15 used for?

KI15 regulates intestines, alleviates pain. Common clinical indications include abdominal pain, constipation, diarrhea, irregular menstruation.

How is KI15 needled?

Perpendicular insertion 0.8 to 1.2 cun. Caution for bladder if full. Caution: ⚠ Have the patient void first — do not needle a full bladder.

Which meridian is KI15 on?

KI15 is a point on the Kidney Channel Meridian (Zú Shàoyīn Shènjīng).

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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.