LR8 Spring at the Crook

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

LR8 (Ququan, “Spring at the Crook”) is the He-Sea (Water) point of the Liver Channel of Foot Jueyin Meridian. It is located when the knee is flexed, this point is in the depression at the medial end of the transverse popliteal crease, anterior to the tendons of semitendinosus and semimembranosus. It nourishes Liver Blood and Yin, clears damp-heat from the lower jiao.

Location

When the knee is flexed, this point is in the depression at the medial end of the transverse popliteal crease, anterior to the tendons of semitendinosus and semimembranosus.

Needling

Perpendicular insertion 0.8-1.2 cun.

TCM functions

Nourishes Liver Blood and Yin, clears damp-heat from the lower jiao.

Indications

Genital pain, pruritus vulvae, uterine prolapse, dysuria, knee pain.

He-Sea (Water)

Clinical notes

As the He-Sea and Water point of the Liver, LR8 is crucial for nourishing Liver Blood and Yin, making it invaluable for conditions like Liver Blood deficiency, dizziness, and blurred vision. It is also highly effective in clearing damp-heat from the lower jiao, particularly for genitourinary issues such as painful urination, vaginal discharge, and pruritus. It is often combined with SP6 to nourish Yin and Blood.

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 when the knee is flexed, this point is in the depression at the medial end of the transverse popliteal crease, anterior to the tendons of semitendinosus and semimembranosus.

What is LR8 used for?

LR8 nourishes Liver Blood and Yin, clears damp-heat from the lower jiao. Common clinical indications include genital pain, pruritus vulvae, uterine prolapse, dysuria, knee pain.

How is LR8 needled?

Perpendicular insertion 0.8-1.2 cun.

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.