GB38 Yang Assistance

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

GB38 (Yangfu, “Yang Assistance”) is the Jing-River (Fire) point of the Gallbladder Channel Meridian. It is located on the lateral aspect of the lower leg, 4 cun superior to the tip of the external malleolus, slightly anterior to the fibula. It clears heat, alleviates pain, and activates the meridian.

Location

On the lateral aspect of the lower leg, 4 cun superior to the tip of the external malleolus, slightly anterior to the fibula.

Needling

Perpendicular insertion 0.5-1 cun. Avoid the fibula.

⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion.

TCM functions

Clears heat, alleviates pain, and activates the meridian.

Indications

Migraine, hypochondriac pain, leg pain, swelling of the foot.

Jing-River (Fire)

Clinical notes

As the Jing-River (Fire) point of the Gallbladder meridian, GB38 is primarily used for clearing heat from the meridian, particularly along its pathway. It is highly effective for pain and inflammation in the lateral costal region, hip, and leg due to excess heat. Clinically, it is often paired with GB34 for a comprehensive approach to Gallbladder meridian pain.

On the Gallbladder Channel channel

GB38 is one of 44 points on the Gallbladder Channel Meridian. Nearby points:

Frequently asked questions

Where is GB38 located?

GB38 (Yangfu) is located on the lateral aspect of the lower leg, 4 cun superior to the tip of the external malleolus, slightly anterior to the fibula.

What is GB38 used for?

GB38 clears heat, alleviates pain, and activates the meridian. Common clinical indications include migraine, hypochondriac pain, leg pain, swelling of the foot.

How is GB38 needled?

Perpendicular insertion 0.5-1 cun. Avoid the fibula. Caution: ⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion.

Which meridian is GB38 on?

GB38 is a point on the Gallbladder Channel Meridian (Zú Shàoyáng Dǎnjīng).

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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.