GB40 Mound Ruins

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

GB40 (Qiuxu, “Mound Ruins”) is the Yuan-Source Point point of the Gallbladder Channel Meridian. It is located on the dorsum of the foot, in the depression located anterior and inferior to the external malleolus. It clears Gallbladder heat, soothes the sinews and invigorates the channel, resolves damp-heat, and alleviates pain.

Location

On the dorsum of the foot, in the depression located anterior and inferior to the external malleolus.

Needling

Perpendicular or slightly oblique insertion towards the medial side, 0.5 to 1.0 cun.

TCM functions

Clears Gallbladder heat, soothes the sinews and invigorates the channel, resolves damp-heat, and alleviates pain..

Indications

Major hernia with abdominal hardness, sudden hernia with pain, axillary swelling, malaria with chills, muscle cramping, leg cramping with pain and swelling, inability to stand for long due to trembling, foot tendon contracture, foot weakness, inability to sit up, hip joint pain, eye diseases with films or membranes, leg and thigh soreness, neck swelling with alternating fever and chills,low back and hip pain, frequent sighing, chest and hypochondriac pain, pain along the lateral aspect of the body from the chest to the ankle, foot weakness with difficulty walking, pain from sprains or strains of the ankle,a type of foot pain, possibly plantar fasciitis..

Yuan-Source Point

Clinical notes

As the Yuan-Source point of the Gallbladder channel, Qiuxu is a key distal point for treating disorders along the entire channel pathway. It is particularly effective for conditions involving the sinews and joints, such as ankle pain, hip pain, and cramping in the lower limbs. Its ability to address 'major hernia with abdominal hardness' and chest pain highlights its role in regulating Qi in both the lower and middle jiao, making it useful for a variety of channel-related disorders.

On the Gallbladder Channel channel

GB40 is one of 44 points on the Gallbladder Channel Meridian. Nearby points:

Frequently asked questions

Where is GB40 located?

GB40 (Qiuxu) is located on the dorsum of the foot, in the depression located anterior and inferior to the external malleolus.

What is GB40 used for?

GB40 clears Gallbladder heat, soothes the sinews and invigorates the channel, resolves damp-heat, and alleviates pain. Common clinical indications include major hernia with abdominal hardness, sudden hernia with pain, axillary swelling, malaria with chills, muscle cramping, leg cramping with pain and swelling, inability to stand for long due to trembling, foot tendon contracture, foot weakness, inability to sit up, hip joint pain, eye diseases with films or membranes, leg and thigh soreness, neck swelling with alternating fever and chills,low back and hip pain, frequent sighing, chest and hypochondriac pain, pain along the lateral aspect of the body from the chest to the ankle, foot weakness with difficulty walking, pain from sprains or strains of the ankle,a type of foot pain, possibly plantar fasciitis.

How is GB40 needled?

Perpendicular or slightly oblique insertion towards the medial side, 0.5 to 1.0 cun.

Which meridian is GB40 on?

GB40 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.