SI15 Middle Shoulder Shu

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

SI15 (Jianzhongshu, “Middle Shoulder Shu”) is an acupuncture point on the Small Intestine Channel Meridian. It is located 2 cun lateral to the lower border of the spinous process of the seventh cervical vertebra (C7). It activates the meridian and alleviates pain.

Location

2 cun lateral to the lower border of the spinous process of the seventh cervical vertebra (C7).

Needling

Oblique insertion 0.5-0.8 cun. Caution: Pneumothorax.

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

TCM functions

Activates the meridian and alleviates pain.

Indications

Pain in the scapular region, pain in the shoulder and back, stiff neck.

Clinical notes

SI15, Jianzhongshu, is primarily used for local pain and stiffness in the shoulder and upper back, especially in the region between the scapula and the spine. It is effective for conditions such as frozen shoulder, neck stiffness, and pain radiating to the arm. This point helps to relax the muscles, activate the meridian, and promote the smooth flow of qi and blood in the upper back and shoulder.

On the Small Intestine Channel channel

SI15 is one of 19 points on the Small Intestine Channel Meridian. Nearby points:

Frequently asked questions

Where is SI15 located?

SI15 (Jianzhongshu) is located 2 cun lateral to the lower border of the spinous process of the seventh cervical vertebra (C7).

What is SI15 used for?

SI15 activates the meridian and alleviates pain. Common clinical indications include pain in the scapular region, pain in the shoulder and back, stiff neck.

How is SI15 needled?

Oblique insertion 0.5-0.8 cun. Caution: Pneumothorax. Caution: ⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

Which meridian is SI15 on?

SI15 is a point on the Small Intestine Channel Meridian (Shǒu Tài Yáng Xiǎo Cháng 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.