He (water) point.

[Origin]

The inner side is called "Yin", and the depression is called "Valley". The hole is located in the depression on the inside of the popliteal fossa, opposite to the Weiyang (BL39) point on the outside.

[Location]

Yingu (KI10) acupoint
(quoted from "Meridians and Acupoints")

• Lingshu‧Benshu: "After fibula and radius, under the big tendons and above the small tendons, press it with your hands and bend your knees to get it."
• Xunjing Kaoxue Bian: "There are two slits on the knees, the upper one is Ququan (LR8) and the lower one is Yingu (KI10)."

[Anatomy]

• Muscles: the semitendinosus tendon on the peroneal side and the semimembranous tendon on the tibial side; the medial head of the gastrocnemius muscle is the deep layer.
• Nerve: cutaneous branch of the obturator nerve.
• Vessels: medial arteries and veins above the knee.

[Manipulation]

Perpendicular insertion 0.5～1.5 inches. moxa cone moxibustion 3 to 5 times, moxa stick warm moxibustion for 10 to 15 minutes.

[Efficacy]

Manage the lower jiao to eliminate fullness.

• Classical: Women's fistula disease, blood, leukorrhea, abdominal distension and fullness, inability to breathe, yellow urine, drowning, impotence, acute lower abdomen and internal inflammation of the feet, wet and itchy scrotum, soreness in the knees and popliteals.
• Modern: gastric spasm, bladder inflammation, vaginal inflammation.

[Recipe]

• Yellow and red urine: Yingu (KI10), Taixi (KI3), Shenshu (BL23), Qihai (CV6), Pangguangshu (BL28), Guanyuan (CV4).
• cholera: Yingu (KI10), Zusanli (ST36).
• ischuria: Guanyuan (CV4), Yingu (KI10).
• Excessive leucorrhea, pubic itching, scrotal eczema: Guanyuan (CV4), Shangliao (BL31), Yingu (KI10).