Spleen
SP9
阴陵泉 · Yinlingquan
Yin Mound Spring
Inner knee hollow taught for damp and heaviness.
He-sea · Water point of the Spleen
System
- Channel
- Spleen (SP)
- Element
- Earth
- Yin or yang
- yin
- Organ system
- Spleen
- Region
- Hip and leg
- Limb rule
- Foot Taiyin
Where it is
On the inner leg, in the hollow just below the knee, below the medial condyle of the tibia, in the groove beside the bone.
Nearby: Inner knee. Don’t press into the joint line if it is already swollen.
Traditionally said to
He-sea and water point of the Spleen. The standard point in teaching for draining damp: heaviness, loose stool, and water retention as pattern names.
What people look up
Acupressure
Sit, knee bent, press the hollow for 45–60 seconds.
When not to press: A hot, injured, or unstable knee is not a press-here problem.
About 30–90 seconds is the usual window, unless the step above is shorter. Stop if pain, dizziness, or anything unusual shows up.
Licensed practice only
Needle depth, angle, electroacupuncture
Textbook language for students. Not instructions. A cun is a body-inch on that person, not a ruler inch. Do not needle yourself.
Depth
Common textbook range: about 1–1.5 cun perpendicular.
Angle
Perpendicular, in the groove below the condyle.
Electroacupuncture
Introductory charts rarely assign a standard electroacupuncture setting here. Clinics that use current choose frequency and intensity for that person. No milliamp figure is given, because copying one would be misleading.
Nearby on this channel
Three Yin Intersection
Inner-leg crossing of three yin channels. Not a pregnancy self-care point.
Traditionally avoided in pregnancy
Sea of Blood
Inner thigh point in the “blood” teaching set.
Yellow Emperor
Arch point that opens the Chong vessel.
Great Horizontal
Well out from the navel, a spleen abdomen point.
Use caution
Herbs often paired for a similar pattern
A study link, not a formula and not a dose.
Poria
A mild fungus that leaches damp and quiets the heart in textbooks.
Alisma rhizome
Drains damp from the lower body and is said to settle ministerial fire.
Coix seed
A grain-like seed that drains damp and eases a heavy body.
White atractylodes
Strengthens the spleen and dries damp.
Tags
yinlingquan · damp · inner knee