LR8 Ququan translates to 'Crooked Spring'

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

LR8 (Ququan, “Ququan translates to 'Crooked Spring'”) is the He-Sea Point point of the Liver Channel of Foot Jueyin Meridian. It is located on the medial aspect of the knee, in a depression found when the knee is flexed. It is located inferior to the medial epicondyle of the femur, posterior to the tibial condyle, in the depression at the medial end of the transverse popliteal crease, just anterior to the tendons of the semitendinosus and semimembranosus muscles. It clears Damp-Heat from the Lower Jiao, benefits the genitals, soothes the sinews, invigorates blood, and regulates the Liver.

Location

On the medial aspect of the knee, in a depression found when the knee is flexed. It is located inferior to the medial epicondyle of the femur, posterior to the tibial condyle, in the depression at the medial end of the transverse popliteal crease, just anterior to the tendons of the semitendinosus and semimembranosus muscles.

Needling

Perpendicular insertion 1.0 to 1.5 cun, or obliquely in a proximal or distal direction. With the knee flexed, the needle is inserted between the tendons of semitendinosus and semimembranosus.

TCM functions

Clears Damp-Heat from the Lower Jiao, benefits the genitals, soothes the sinews, invigorates blood, and regulates the Liver..

Indications

Abdominal fullness, inability to urinate, impotence, uterine prolapse, penile pain, female abdominal masses (jia), feeling as if hot water is poured on the inner thigh, watery diarrhea (sui xie), infertility, lack of appetite, vaginal swelling, vaginal itching, discharge of green fluid like mallow soup, amenorrhea, mania, nosebleed, bleeding from the lower body, shortness of breath, lower abdominal pain radiating to the throat, seminal emission from sexual taxation, extreme body pain, bloody and purulent diarrhea, swelling of the scrotum, pain in the knee and patella, contracture of the sinews making flexion and extension difficult, coldness and pain in the knee and shin, inability to walk, headache, dizziness, eye pain, no sweating..

He-Sea PointWater Point

Clinical notes

As the He-Sea and Water point of the Liver channel, Ququan is a primary point for clearing damp-heat from the lower jiao. It is classically indicated for a wide range of genital, urinary, and reproductive disorders in both men and women, including prolapse, pain, impotence, and difficult urination. Its location at the knee also makes it effective for local pain, stiffness, and sinew contracture, reflecting the Liver's function of governing the sinews.

On the Liver Channel of Foot Jueyin channel

LR8 is one of 14 points on the Liver Channel of Foot Jueyin Meridian. Nearby points:

Frequently asked questions

Where is LR8 located?

LR8 (Ququan) is located on the medial aspect of the knee, in a depression found when the knee is flexed. It is located inferior to the medial epicondyle of the femur, posterior to the tibial condyle, in the depression at the medial end of the transverse popliteal crease, just anterior to the tendons of the semitendinosus and semimembranosus muscles.

What is LR8 used for?

LR8 clears Damp-Heat from the Lower Jiao, benefits the genitals, soothes the sinews, invigorates blood, and regulates the Liver. Common clinical indications include abdominal fullness, inability to urinate, impotence, uterine prolapse, penile pain, female abdominal masses (jia), feeling as if hot water is poured on the inner thigh, watery diarrhea (sui xie), infertility, lack of appetite, vaginal swelling, vaginal itching, discharge of green fluid like mallow soup, amenorrhea, mania, nosebleed, bleeding from the lower body, shortness of breath, lower abdominal pain radiating to the throat, seminal emission from sexual taxation, extreme body pain, bloody and purulent diarrhea, swelling of the scrotum, pain in the knee and patella, contracture of the sinews making flexion and extension difficult, coldness and pain in the knee and shin, inability to walk, headache, dizziness, eye pain, no sweating.

How is LR8 needled?

Perpendicular insertion 1.0 to 1.5 cun, or obliquely in a proximal or distal direction. With the knee flexed, the needle is inserted between the tendons of semitendinosus and semimembranosus.

Which meridian is LR8 on?

LR8 is a point on the Liver Channel of Foot Jueyin Meridian (Zú Juéyīn Gānjīng).

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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.