GB37 Guangming

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

GB37 (Guangming, “Guangming”) is the Luo-Connecting Point point of the Gallbladder Channel Meridian. It is located on the lateral aspect of the lower leg, 5 cun superior to the prominence of the lateral malleolus, on the anterior border of the fibula. It benefits the eyes and improves vision, dispels wind and clears heat, activates the channel and alleviates pain, regulates and harmonizes the Shao Yang.

Location

On the lateral aspect of the lower leg, 5 cun superior to the prominence of the lateral malleolus, on the anterior border of the fibula.

Needling

Perpendicular insertion 1.0 to 1.5 cun.

TCM functions

Benefits the eyes and improves vision, dispels wind and clears heat, activates the channel and alleviates pain, regulates and harmonizes the Shao Yang..

Indications

Unclear vision, eye pain, itchy eyes, night blindness, glaucoma, cataracts, atrophy and flaccidity of the lower limbs, inability to sit up or stand for long, pain and soreness of the knee, heat in the feet, pain in the shins, general body aches, numbness, hemiplegia, heat disease with absence of sweating, sudden madness, frequent yawning, shivering and chills, preference for gnawing on the cheeks, pain in the chest, hypochondrium, thigh, knee, fibula, ankle and all joints..

Luo-Connecting Point

Clinical notes

As the Luo-Connecting point of the Gallbladder channel, Guangming connects to the Liver channel, which opens to the eyes. This explains its classical renown for treating a wide range of eye conditions, from blurry vision and pain to more serious degenerative disorders. Its location on the leg also makes it a key distal point for pain, numbness, or motor impairment along the Gallbladder channel, particularly in the lower limbs, as noted in the classics for treating 'wei bi' (atrophy and impediment).

On the Gallbladder Channel channel

GB37 is one of 44 points on the Gallbladder Channel Meridian. Nearby points:

Frequently asked questions

Where is GB37 located?

GB37 (Guangming) is located on the lateral aspect of the lower leg, 5 cun superior to the prominence of the lateral malleolus, on the anterior border of the fibula.

What is GB37 used for?

GB37 benefits the eyes and improves vision, dispels wind and clears heat, activates the channel and alleviates pain, regulates and harmonizes the Shao Yang. Common clinical indications include unclear vision, eye pain, itchy eyes, night blindness, glaucoma, cataracts, atrophy and flaccidity of the lower limbs, inability to sit up or stand for long, pain and soreness of the knee, heat in the feet, pain in the shins, general body aches, numbness, hemiplegia, heat disease with absence of sweating, sudden madness, frequent yawning, shivering and chills, preference for gnawing on the cheeks, pain in the chest, hypochondrium, thigh, knee, fibula, ankle and all joints.

How is GB37 needled?

Perpendicular insertion 1.0 to 1.5 cun.

Which meridian is GB37 on?

GB37 is a point on the Gallbladder Channel Meridian (Zú Shàoyáng Dǎnjīng).

Interactive body mapConditions & evidenceFind an acupuncturistTCM glossary
⚠️ 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.