BL14 Jué Yīn Shū

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

BL14 (Jué Yīn Shū, “Jué Yīn Shū”) is the Back-Shu point of the Bladder Meridian. It is located on the upper back, 1.5 cun lateral to the lower border of the spinous process of the fourth thoracic vertebra (T4). It regulates Heart Qi, expands the chest, unbinds Qi, and alleviates pain.

Location

On the upper back, 1.5 cun lateral to the lower border of the spinous process of the fourth thoracic vertebra (T4).

Needling

Oblique insertion towards the spine, 0.5 to 1.0 cun. Deep perpendicular or oblique-lateral insertion carries a risk of pneumothorax.

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TCM functions

Regulates Heart Qi, expands the chest, unbinds Qi, and alleviates pain..

Indications

Cough with rebellious Qi, vomiting, heart pain, chest fullness, vexation and oppression, toothache, accumulation and stagnation in the chest, chest and diaphragm qi accumulation, good for vomiting..

Back-Shu

Clinical notes

As the Back-Shu point of the Pericardium, Jueyin Shu directly influences the chest and Heart. It is a primary point for treating chest oppression, vexation, and pain arising from Qi stagnation or emotional constraint affecting the Heart and Pericardium. Its ability to descend rebellious Qi also makes it effective for cough and vomiting, particularly when these symptoms are accompanied by thoracic discomfort.

On the Bladder channel

BL14 is one of 67 points on the Bladder Meridian. Nearby points:

BL10BL11BL12BL13BL15BL16BL17BL18

Frequently asked questions

Where is BL14 located?

BL14 (Jué Yīn Shū) is located on the upper back, 1.5 cun lateral to the lower border of the spinous process of the fourth thoracic vertebra (T4).

What is BL14 used for?

BL14 regulates Heart Qi, expands the chest, unbinds Qi, and alleviates pain. Common clinical indications include cough with rebellious Qi, vomiting, heart pain, chest fullness, vexation and oppression, toothache, accumulation and stagnation in the chest, chest and diaphragm qi accumulation, good for vomiting.

How is BL14 needled?

Oblique insertion towards the spine, 0.5 to 1.0 cun. Deep perpendicular or oblique-lateral insertion carries a risk of pneumothorax. Caution: Overlies the thoracic cavity — risk of PNEUMOTHORAX. Needle obliquely or transversely, never deeply or perpendicularly toward the chest wall.

Which meridian is BL14 on?

BL14 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).

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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.