BL-23 - Kidney Shu
肾俞 - Shèn shū
Point Region: Back
BL-23 Shenshu, the Back-Shu point of the Kidneys, is arguably one of the most powerful and essential points on the body. The Kidneys are considered the root of all life—they store our 'Jing' or essence, which is the foundational energy of our being, responsible for growth, reproduction, and longevity. This point is a direct gateway to ground our vitality and strengthen our core.
Think of Shenshu as the ultimate battery charger for your body. It is the go-to point for any sign of aging, fatigue, or depletion. It's especially useful for addressing issues like low back pain, knee weakness, hearing loss, and emotional fear that are all connected to the Kidneys.
By nourishing the Kidneys, BL-23 helps to restore a deep sense of strength, courage, and resilience. It's a point that reminds us that our vitality isn't limitless and that we must take care of our foundation to live a long and healthy life.
Location & How to Find
Anatomical Location: 1.5 cun lateral to the lower border of the spinous process of L2 (second lumbar vertebra).
How to Locate:
- Locate the level of the second lower back vertebra (about waist level)
- Place your finger about one and a half finger-widths to the side of your spine
- Press to find a tender spot in the back muscle - this is BL-23
Primary Functions
Urinary & Kidney System
- Strengthens kidney function and essence
- Treats urinary disorders and incontinence
- Supports reproductive health
- Regulates water metabolism
Musculoskeletal System
- Strengthens lower back and knees
- Treats bone and joint disorders
- Supports spinal health
Immune & Energy System
- Boosts vital energy and stamina
- Supports longevity and anti-aging
Clinical Applications
Primary Indications
- Lower back pain
- Kidney inflammation
- Menstrual irregularities
- Urinary dysfunction
- Sexual dysfunction
- Tinnitus
- Knee weakness
Related Health Concerns
Common Conditions:
Related Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
BL-23 Protocols
Lower Back Support & Kidney Vitality (5 minutes)
- Lie on your back with knees bent or sit against a firm surface
- Locate BL-23 (1.5 cun lateral to the lower border of L2)
- Use fists or thumbs to apply firm pressure for 30 seconds on each side
- Massage in circular motions for 1 minute to warm the area
- Repeat pressure and breathing for another minute to support energy and back strength
Important Precautions
- Caution during pregnancy