KI-2 - Blazing Valley
然谷 - Rán gǔ
Point Region: Foot
KI-2, or 'Rangu' (meaning 'Blazing Valley'), is the 'Ying-Spring' and 'Fire' point of the Kidney channel. Located just below the prominent bone on the inside of the foot, its name refers to the 'blazing' heat that can gather in the 'valley' of the foot.
As a 'Ying-Spring' point, Rangu is a powerful point for clearing 'deficiency heat'—the low-grade fever or hot flashes that come from a lack of nourishing fluids. Think of it as a small stream that can put out a fire that's burning too low. It's often used for conditions like night sweats, dry mouth, and a feeling of heat in the palms and soles.
The location of this point on the foot, where the Kidney meridian begins to rise, makes it an excellent choice for grounding excess energy that has risen to the head. By activating this point, you can help to draw energy back down into the body, restoring a sense of calm and balance. This makes it a great point for anyone dealing with the agitation and restlessness that come from a lack of rest or nourishment.
Location & How to Find
Anatomical Location: Located in the depression on the medial arch, just below the navicular bone.
How to Locate:
- Find the inner arch of your foot
- Locate the prominent bone in your arch (navicular bone)
- Feel for the depression just below this bone
- The point is in this natural hollow of your arch

Primary Functions
Urinary & Kidney System
- Clears kidney heat and inflammation
- Treats urinary tract infections
- Regulates urination frequency
- Strengthens kidney yin
Reproductive System
- Treats irregular menstruation
- Addresses reproductive heat patterns
- Supports fertility in both genders
- Treats genital inflammation
Emotional & Mental
- Calms excessive fire energy
- Reduces irritability and restlessness
- Treats emotional heat patterns
Digestive System
- Treats diarrhea from kidney yang deficiency
- Regulates bowel movements
Clinical Applications
Primary Indications
- Night sweats
- Hot flashes
- Genital pain
- Irregular menstruation
- Heat symptoms
- Sweating
- Reproductive problems
- Menstrual disorders
Related Health Concerns
Common Conditions:
Related Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
KI-2 Protocols
N/A
Important Precautions
- Pregnancy
- Recent foot surgery
- Severe foot infections