Kidney 10 (KI 10) Yin Gu — Yin Valley

This is the He-Sea and Water point of the Kidney channel. It nourishes Kidney yin, clears damp-heat from the lower burner and benefits the genitals and knee.

Kidney 10 (KI 10) Yin Gu 陰谷 — Yin Valley

Location

At the medial side of the popliteal fossa, between the tendons of semitendinosus and semimembranosus, level with BL-40, when the knee is flexed.

Anatomy

Between the semitendinosus and semimembranosus tendons; the medial superior genicular artery; the medial femoral cutaneous nerve and the tibial nerve.

Actions & Functions

  • Nourishes Kidney yin and clears damp-heat from the lower burner
  • Benefits the genitals and the uterus
  • Benefits the knee

Indications

Impotence and genital pain, abnormal vaginal discharge, uterine bleeding, difficult or painful urination, and pain of the medial knee and thigh.

Needling

0.8-1.2 cun, perpendicular insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With SP-9 for damp-heat in the lower burner; with KI-3 to nourish Kidney yin.

Classical Text References

The He-Sea (Water) point of the Kidney.

Cautions & Contraindications

None specific.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

Check Also

PubMed research

Acupuncture Shows Sustained Benefits for Chronic Daily Headache Prevention in Adults, Meta-Analysis Finds

Research summary (Acupuncture): Utility of Acupuncture Therapy for Adult Chronic Daily Headache Prophylaxis: A Systematic Review and Meta-Analysis. - Medical science monitor : international medical journal of experimental and clinical research, 2026.