SI5 Yang Valley

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

SI5 (Yánggǔ, “Yang Valley”) is the Jing-River point of the Small Intestine Channel Meridian. It is located at the wrist, in the depression between the styloid process of the ulna and the triquetrum bone. It clears heat and dissipates swelling.

Location

At the wrist, in the depression between the styloid process of the ulna and the triquetrum bone.

Needling

Perpendicular insertion 0.3-0.5 cun.

TCM functions

Clears heat and dissipates swelling.

Indications

Wrist pain, headache, tinnitus, deafness, febrile diseases.

Jing-River

Clinical notes

As a Jing-River point, SI5 is effective in clearing heat from the Small Intestine meridian, particularly for conditions affecting the wrist and hand. It is a key point for local pain, swelling, and stiffness of the wrist joint, often due to sprain or arthritis. It also addresses heat-related symptoms along the meridian, such as headache, tinnitus, and toothache, and is frequently used with LI5 for wrist pain.

On the Small Intestine Channel channel

SI5 is one of 19 points on the Small Intestine Channel Meridian. Nearby points:

Frequently asked questions

Where is SI5 located?

SI5 (Yánggǔ) is located at the wrist, in the depression between the styloid process of the ulna and the triquetrum bone.

What is SI5 used for?

SI5 clears heat and dissipates swelling. Common clinical indications include wrist pain, headache, tinnitus, deafness, febrile diseases.

How is SI5 needled?

Perpendicular insertion 0.3-0.5 cun.

Which meridian is SI5 on?

SI5 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.