GB31 Fengshi

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

GB31 (Fengshi, “Fengshi”) is an acupuncture point on the Gallbladder Channel Meridian. It is located on the lateral aspect of the thigh. To locate, have the patient stand erect with their arms hanging naturally at their sides. The point is found in a depression directly under the tip of the middle finger, on the midline of the outer thigh. It expels Wind, resolves Dampness, soothes the sinews and channels, alleviates pain and numbness.

Location

On the lateral aspect of the thigh. To locate, have the patient stand erect with their arms hanging naturally at their sides. The point is found in a depression directly under the tip of the middle finger, on the midline of the outer thigh.

Needling

Perpendicular insertion 1.0 to 2.0 cun, or oblique insertion directed inferiorly.

TCM functions

Expels Wind, resolves Dampness, soothes the sinews and channels, alleviates pain and numbness..

Indications

Cold Bi-syndrome, leg and shin numbness, thigh and knee soreness and pain, heaviness in the lower back and buttocks, difficulty rising from a seated position, flaccidity and paralysis (wei bi), coldness and lack of sensation in the intestines, pain in the lower leg, knee contracture and pain, pain in the hypochondriac region, skin conditions with itching, hemiplegia, foot weakness, foot pain, foot numbness, foot coldness, foot heat, leg qi (beriberi), difficulty walking..

Clinical notes

Fengshi is a key point for treating disorders of the lower limb, especially those characterized by pain, weakness, numbness, or paralysis along the Gallbladder channel. Its name, 'Wind Market,' highlights its efficacy in dispelling pathogenic wind, making it essential for treating hemiplegia, post-stroke sequelae, and various Bi (obstruction) syndromes affecting the leg. The classical emphasis on heavy moxibustion for leg weakness (Jiao Qi) underscores its tonifying and warming action on the channels to restore motor function.

On the Gallbladder Channel channel

GB31 is one of 44 points on the Gallbladder Channel Meridian. Nearby points:

Frequently asked questions

Where is GB31 located?

GB31 (Fengshi) is located on the lateral aspect of the thigh. To locate, have the patient stand erect with their arms hanging naturally at their sides. The point is found in a depression directly under the tip of the middle finger, on the midline of the outer thigh.

What is GB31 used for?

GB31 expels Wind, resolves Dampness, soothes the sinews and channels, alleviates pain and numbness. Common clinical indications include cold Bi-syndrome, leg and shin numbness, thigh and knee soreness and pain, heaviness in the lower back and buttocks, difficulty rising from a seated position, flaccidity and paralysis (wei bi), coldness and lack of sensation in the intestines, pain in the lower leg, knee contracture and pain, pain in the hypochondriac region, skin conditions with itching, hemiplegia, foot weakness, foot pain, foot numbness, foot coldness, foot heat, leg qi (beriberi), difficulty walking.

How is GB31 needled?

Perpendicular insertion 1.0 to 2.0 cun, or oblique insertion directed inferiorly.

Which meridian is GB31 on?

GB31 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.