ST15 Wuyi

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

ST15 (Wuyi, “Wuyi”) is an acupuncture point on the Stomach Meridian. It is located on the chest, in the second intercostal space, 4 cun lateral to the anterior midline. This point is located 1.6 cun inferior to Kufang (ST14) and 1.6 cun superior to Yingchuang (ST16). It descends rebellious Lung Qi, alleviates cough and wheezing, resolves phlegm, relieves pain, and dispels swelling.

Location

On the chest, in the second intercostal space, 4 cun lateral to the anterior midline. This point is located 1.6 cun inferior to Kufang (ST14) and 1.6 cun superior to Yingchuang (ST16).

Needling

Oblique or transverse-oblique insertion 0.3-0.5 cun. Avoid deep perpendicular insertion to prevent pneumothorax.

Overlies the thoracic cavity — risk of PNEUMOTHORAX. Needle obliquely or transversely, never deeply or perpendicularly toward the chest wall.

TCM functions

Descends rebellious Lung Qi, alleviates cough and wheezing, resolves phlegm, relieves pain, and dispels swelling.

Indications

Cough with rebellious Qi, spitting blood, turbid phlegm, pus-like sputum, phlegm-fluid retention, generalized body swelling, skin pain that prevents clothing from touching it, numbness, clonic spasm (chizong), chest and back pain, inability to taste, chest fullness, shortness of breath, asthma, difficulty breathing.

Clinical notes

Wuyi is a significant local point on the chest for treating disorders of the Lung. Its classical indications emphasize its ability to address productive coughs with phlegm, pus, or blood, as well as conditions of rebellious Qi like wheezing and shortness of breath. It is also noted for treating generalized edema with skin pain, a condition where the skin is so sensitive that even clothing causes discomfort, suggesting its use in severe fluid accumulation affecting the superficial layers of the body.

In the classical sources

Classical text; the translation was prepared with AI and is not clinical advice.

《針灸逢源》 Zhēnjiǔ Féngyuán — Sources of Acupuncture & Moxibustion, Li Xuechuan, 1815 · 卷四 · 經穴考正 · 足陽明胃經穴考 · Source: jicheng.tw ↗

屋翳 在庫房下一寸六分。 紫官旁四寸陷中。 仰取之。 (針三分。 灸五壯)治唾膿血濁沫

According to this text, ST15 lies 1.6 cun below Kufang (ST14), in the depression 4 cun beside Zigong (CV19), located with the face upward; needle 0.3 cun, moxibustion 5 cones. It was used for spitting pus, blood and turbid froth.

《鍼灸聚英》 Zhēnjiǔ Jùyīng — Gathering of Eminent Acupuncturists, Gao Wu, 1529 · Source: Wikisource ↗

屋翳 庫房下一寸六分陷中。 氣戶下三寸二分。 去中行各四寸。 巨骨下四寸八分

According to this text, ST15 lies in the depression 1.6 cun below Kufang (ST14), 3.2 cun below Qihu (ST13), 4 cun from the midline and 4.8 cun below the clavicle.

《醫學入門》 Yīxué Rùmén — Introduction to Medicine, Li Chan, 1575 · 经穴起止 · Source: Wikisource ↗

屋翳库房下一寸六分。 针入四分,灸五壮。 主身肿皮痛不可近衣

According to this text, ST15 lies 1.6 cun below Kufang (ST14); needle 0.4 cun, moxibustion 5 cones. It was used for swelling of the body with skin so painful that clothing cannot touch it.

《針方六集》 Zhēnfāng Liùjí — Six Collections on Needling, Wu Kun, 1618 · 卷之五·紛署集 · 胸自氣戶夾輸府兩旁各二寸下行至乳根凡十二穴第十六 · Source: jicheng.tw ↗

屋翳二穴,主咳逆上氣,唾膿血濁沫痰飲,陽明濕熱水腫,皮痛不可近衣

The text records that ST15 was used for cough with rising qi, spitting of pus, blood, turbid froth and phlegm-fluid, Yangming damp-heat with oedema, and skin so painful that clothing cannot touch it.

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 on the chest, in the second intercostal space, 4 cun lateral to the anterior midline. This point is located 1.6 cun inferior to Kufang (ST14) and 1.6 cun superior to Yingchuang (ST16).

What is ST15 used for?

ST15 descends rebellious Lung Qi, alleviates cough and wheezing, resolves phlegm, relieves pain, and dispels swelling. Common clinical indications include cough with rebellious Qi, spitting blood, turbid phlegm, pus-like sputum, phlegm-fluid retention, generalized body swelling, skin pain that prevents clothing from touching it, numbness, clonic spasm (chizong), chest and back pain, inability to taste, chest fullness, shortness of breath, asthma, difficulty breathing.

How is ST15 needled?

Oblique or transverse-oblique insertion 0.3-0.5 cun. Avoid deep perpendicular insertion to prevent pneumothorax. Caution: Overlies the thoracic cavity — risk of PNEUMOTHORAX. Needle obliquely or transversely, never deeply or perpendicularly toward 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.