ST15 Room Screen

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

ST15 (Wuyi, “Room Screen”) is an acupuncture point on the Stomach Meridian. It is located in the second intercostal space, 4 cun lateral to the anterior midline. It regulates qi, alleviates cough and asthma, unbinds chest.

Location

In the second intercostal space, 4 cun lateral to the anterior midline.

Needling

Oblique or perpendicular insertion 0.3-0.5 cun. Deep insertion carries a risk of pneumothorax.

⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

TCM functions

Regulates qi, alleviates cough and asthma, unbinds chest.

Indications

Cough, asthma, chest pain, mastitis.

Clinical notes

Wuyi, or 'Room Screen,' is an important point for unbinding the chest, regulating qi, and alleviating cough and asthma, particularly when there is a sensation of fullness or pain in the chest. It is frequently used for local conditions such as mastitis, breast distention, and intercostal neuralgia. Its action on qi stagnation makes it beneficial for emotional constraint affecting the chest.

On the Stomach channel

ST15 is one of 45 points on the Stomach Meridian. Nearby points:

Frequently asked questions

Where is ST15 located?

ST15 (Wuyi) is located in the second intercostal space, 4 cun lateral to the anterior midline.

What is ST15 used for?

ST15 regulates qi, alleviates cough and asthma, unbinds chest. Common clinical indications include cough, asthma, chest pain, mastitis.

How is ST15 needled?

Oblique or perpendicular insertion 0.3-0.5 cun. Deep insertion carries a risk of pneumothorax. Caution: ⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

Which meridian is ST15 on?

ST15 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.