REN12 Middle Cavity

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

REN12 (Zhongwan, “Middle Cavity”) is the Front-Mu of Stomach point of the Conception Vessel Meridian. REN12 is located on the anterior midline of the abdomen, 4 cun superior to the umbilicus. It harmonizes the Middle Jiao, regulates Qi, alleviates pain.

Location

REN12 is located on the anterior midline of the abdomen, 4 cun superior to the umbilicus.

Needling

Perpendicular insertion 0.8-1.5 cun. Caution for peritoneum.

TCM functions

Harmonizes the Middle Jiao, regulates Qi, alleviates pain.

Indications

Stomachache, abdominal distention, vomiting, diarrhea, indigestion.

Front-Mu of StomachHui-Meeting of Fu-organsMeeting point of Ren, Stomach, Small Intestine, Sanjiao

Clinical notes

REN12 is the Front-Mu point of the Stomach and the Hui-Meeting point of the Fu-organs, making it the most important point on the Ren meridian for all disorders of the Middle Jiao. It excels at harmonizing the Stomach and Spleen, regulating Qi, and alleviating pain, addressing issues like epigastric pain, acid reflux, nausea, vomiting, and indigestion. Its central role in the Middle Jiao means it can treat both excess and deficiency patterns, often paired with ST36 for general digestive tonification or with PC6 for nausea and vomiting.

On the Conception Vessel channel

REN12 is one of 24 points on the Conception Vessel Meridian. Nearby points:

Frequently asked questions

Where is REN12 located?

REN12 is located on the anterior midline of the abdomen, 4 cun superior to the umbilicus.

What is REN12 used for?

REN12 harmonizes the Middle Jiao, regulates Qi, alleviates pain. Common clinical indications include stomachache, abdominal distention, vomiting, diarrhea, indigestion.

How is REN12 needled?

Perpendicular insertion 0.8-1.5 cun. Caution for peritoneum.

Which meridian is REN12 on?

REN12 is a point on the Conception Vessel Meridian (Rèn Mài).

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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.