ST28 Waterway

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

ST28 (Shuidao, “Waterway”) is an acupuncture point on the Stomach Meridian. It is located on the lower abdomen, 2 cun lateral to the anterior midline, 3 cun inferior to the umbilicus. It regulates water metabolism and benefits the Lower Jiao.

Location

On the lower abdomen, 2 cun lateral to the anterior midline, 3 cun inferior to the umbilicus.

Needling

Perpendicular insertion 1-1.5 cun. Caution for peritoneum.

TCM functions

Regulates water metabolism and benefits the Lower Jiao.

Indications

Lower abdominal distention, retention of urine, hernia, infertility.

Clinical notes

ST28, 'Waterway,' is primarily used for its strong action on water metabolism in the lower jiao, making it effective for edema, urinary retention, and difficult urination. It also addresses abdominal pain and distention, particularly when related to dampness or water accumulation. Its name reflects its capacity to open the water passages and promote diuresis.

On the Stomach channel

ST28 is one of 45 points on the Stomach Meridian. Nearby points:

Frequently asked questions

Where is ST28 located?

ST28 (Shuidao) is located on the lower abdomen, 2 cun lateral to the anterior midline, 3 cun inferior to the umbilicus.

What is ST28 used for?

ST28 regulates water metabolism and benefits the Lower Jiao. Common clinical indications include lower abdominal distention, retention of urine, hernia, infertility.

How is ST28 needled?

Perpendicular insertion 1-1.5 cun. Caution for peritoneum.

Which meridian is ST28 on?

ST28 is a point on the Stomach Meridian (Zú Yángmíng Wèijīng).

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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.