SP-9 - Yin Mound Spring
阴陵泉 - Yīn líng quán
Point Region: Shin
SP-9 Yinlingquan, meaning 'Yin Mound Spring,' is the 'He-Sea' and 'Water' point of the Spleen channel. Located on the leg, this point is a 'spring of yin' that helps to regulate the body's internal energy and restore a sense of balance. Its name, 'Yin Mound Spring,' alludes to its ability to bring a sense of order and harmony to the body's entire system.
Think of Yinlingquan as a point that helps to 'replenish the spring' of your body. It's invaluable for addressing issues like a feeling of heaviness or a thick body, a lack of vitality, and a restless spirit. By regulating the body's internal energy, it helps to restore a sense of ease and freedom.
By regulating the body's internal energy, SP-9 helps to restore a sense of balance and inner peace. It's a point that reminds us that our true power comes from a calm and unburdened body.
Location & How to Find
Anatomical Location: On the medial side of the lower leg, in a palpable hollow.
How to Locate:
- Find the inner edge of your shin bone just below your kneecap
- Follow this edge down until you feel a hollow or depression
- This is usually where your shin bone curves
- The point is in this natural hollow
Primary Functions
Urinary System
- Promotes urination and diuresis
- Treats edema and water retention
- Reduces lower body swelling
- Treats urinary tract infections
- Improves kidney and bladder function
Digestive System
- Transforms dampness and improves digestion
- Treats chronic diarrhea and loose stools
- Reduces abdominal distension
- Improves spleen function
Reproductive System
- Treats leucorrhea and vaginal discharge
- Regulates menstrual cycle
- Treats reproductive tract inflammation
Musculoskeletal System
- Treats knee pain and swelling
- Reduces leg inflammation and stiffness
- Improves lower limb circulation
Immune & Energy System
- Strengthens overall constitution
- Improves energy and reduces fatigue
- Boosts immune system function
Clinical Applications
Primary Indications
- Edema
- Diarrhea
- Difficulty urinating
- Knee pain
- Fluid retention
- Digestive problems
- Urinary problems
- Leg swelling
Related Health Concerns
Common Conditions:
Related Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
SP-9 Protocols
Fluid Retention & Knee Relief (4 minutes)
- Sit with knee bent and relaxed
- Locate SP-9 (in the depression on the lower border of the medial condyle of the tibia)
- Apply firm pressure for 30 seconds on each leg
- Massage in circular motions for 1 minute to support fluid metabolism and ease knee tension
- Repeat pressure while gently flexing and extending the knee
Important Precautions
- Recent knee surgery
- Severe kidney disease
- Acute knee injury