DU8 Sinew Contraction

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

DU8 (Jinsuo, “Sinew Contraction”) is an acupuncture point on the Governing Vessel Meridian. It is located on the posterior midline, in the depression below the spinous process of the ninth thoracic vertebra (T9). It relaxes sinews, calms the spirit, extinguishes wind.

Location

On the posterior midline, in the depression below the spinous process of the ninth thoracic vertebra (T9).

Needling

Oblique insertion superiorly 0.5-1 cun. Caution for pneumothorax.

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

TCM functions

Relaxes sinews, calms the spirit, extinguishes wind.

Indications

Epilepsy, convulsions, stiffness of the spine, low back pain.

Clinical notes

DU8 is a crucial point for relaxing sinews, particularly in cases of spasm, rigidity, and opisthotonos, often due to internal wind. Its name, 'Sinew Contraction,' directly reflects this primary function. It also effectively calms the spirit and extinguishes wind, making it valuable for epilepsy, mania, and childhood convulsions. It is empirically used for tremors and spasms, often with DU16.

On the Governing Vessel channel

DU8 is one of 28 points on the Governing Vessel Meridian. Nearby points:

Frequently asked questions

Where is DU8 located?

DU8 (Jinsuo) is located on the posterior midline, in the depression below the spinous process of the ninth thoracic vertebra (T9).

What is DU8 used for?

DU8 relaxes sinews, calms the spirit, extinguishes wind. Common clinical indications include epilepsy, convulsions, stiffness of the spine, low back pain.

How is DU8 needled?

Oblique insertion superiorly 0.5-1 cun. Caution for pneumothorax. Caution: ⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

Which meridian is DU8 on?

DU8 is a point on the Governing Vessel Meridian (Dū 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.