BL40 Weizhong Dog Acupuncture Point
Wěi Zhōng 委中Professional veterinary acupuncture overview of BL40 Weizhong in dogs, including anatomical location, back pain support applications, classical functions, and safety notes.
| Chinese Name | 委中 |
| Pinyin | Wěi Zhōng |
| Meridian | Bladder Meridian (BL) |
| Anatomical Location | Midpoint of the popliteal crease. |
| Main Indications | Lumbar and back pain, hind limb paralysis, heat stroke, hindquarter weakness, sciatica-like patterns. |
| Classical Function | He-Sea point of the Bladder; one of the Four Command Points for back pain. |
| Meridian Color | Bladder Meridian | Water | Black / Deep Blue |
Clinical Overview
In veterinary acupuncture practice, BL40 is one of the most important distal points for dogs with acute or chronic lower back pain and hindquarter dysfunction.
TCVM practitioners often include BL40 in protocols aimed at clearing Heat, relaxing the sinews, and supporting the lumbosacral and hind limb regions.
Veterinary Disclaimer
This educational content is not intended to replace professional veterinary diagnosis or treatment. Acupuncture and electroacupuncture should only be performed by a licensed veterinarian or certified veterinary acupuncturist.
BL40 Canine Acupuncture Point Placeholder
Use this area for the canine BL40 map or your future TCVM illustration.
Pinpoint Location
Anatomical Landmark
Flex the stifle slightly and identify the midpoint of the transverse crease in the popliteal fossa. In canine anatomy, this is the standard landmark for BL40.
Primary Clinical Indications
- Lumbar and back pain: A classic command point for the back.
- Hind limb paralysis: Frequently referenced for hindquarter weakness and mobility support.
- Heat stroke: Often included in heat-clearing protocols.
- Back pain with stiffness: Commonly used when the lumbar region is tense or painful.
Recommended Point Pairings
In clinical veterinary acupuncture, BL40 is often paired with other lumbar, hind limb, and heat-clearing support points depending on presentation.
Frequently paired with BL23, BL25, GB30, and local lumbar points in back pain protocols.
Often combined with ST36, BL54, and GB34 for hindquarter support.
May be integrated into multimodal support strategies involving acupuncture, cooling therapy, hydration, and rehabilitation.
Modern Veterinary Interpretation
From a modern veterinary rehabilitation perspective, BL40 is positioned over a major hind-limb flexion region and is often used to support lower-back mechanics and nerve-related discomfort.
Integrative veterinarians may include this point within broader musculoskeletal and heat-related care plans involving acupuncture, electroacupuncture, and medical management.
Safety & Needling Notes
Professional Veterinary Use
Because BL40 lies in the popliteal fossa, needling depth and angle should only be handled by trained veterinary professionals. Caution is required because major vessels and nerves are nearby.
Gentle Acupressure Guidance
Pet owners exploring supportive acupressure should use only gentle pressure and discontinue immediately if pain, stress, or guarding occurs.
Editorial & Veterinary Review
This educational resource was prepared by the PetAcu editorial team using veterinary acupuncture references, TCVM educational materials, canine rehabilitation resources, and integrative veterinary literature.
Canine Acupuncture Atlas
Browse the complete veterinary acupuncture point database for dogs.
Explore Atlas →Dog Conditions That Acupuncture Treats Well
Explore integrative TCVM and acupuncture resources for dogs.
View dog conditions →Find a Veterinary Acupuncturist
Discover integrative veterinary practitioners and rehabilitation clinics.
Browse directory →