BL40 Wei Zhong (委中) Cat Acupuncture Point
In cats, BL40 (Wei Zhong, 委中) is a feline acupuncture point on the Bladder meridian. It is located center of popliteal fossa at the stifle joint. Traditional indications in this chart include lumbar and back pain, hind limb paralysis, heat stroke.
This page is educational. It describes a point in cats as listed in traditional charts and does not give treatment advice. Points should be needled only by trained veterinary professionals, and cats are small and sensitive. See our Medical Disclaimer.
Quick facts
- Species
- Cat
- Point code
- BL40
- Pinyin
- Wei Zhong
- English name
- Supporting Middle
- Chinese name
- 委中
- Meridian
- Bladder
- Element or system
- Water
- Needle depth listed (practitioners only)
- 0.3 to 0.5 cm
- Point category
- One of Four Command Points; For lumbar and back pain
Needle depths are shallow because cats are small. They are shown for reference and are not instructions for owners.
Where is BL40 Wei Zhong on a cat?
Center of popliteal fossa at the stifle joint.
Point locations are approximate and vary with breed and body size. A trained practitioner finds the point by feeling anatomical landmarks.
Traditional indications
- Lumbar and back pain
- hind limb paralysis
- heat stroke
Indications are taken from traditional veterinary acupuncture charts. They describe how the point has been used and are not proof that it treats these conditions in cats.
Cat conditions that mention BL40 Wei Zhong
PetAcu cat condition guides that name this point:
Points often discussed alongside BL40 Wei Zhong
These feline acupuncture points appear in the same cat condition guides. A practitioner chooses a combination for each cat.
Safety notes
Needling should only be done by a trained veterinary professional. Cats are small and sensitive, and shallow needling and short sessions are usual. Needle depth, angle and technique depend on the point and on the size and condition of the cat.
Never apply pressure or heat to a painful area on a cat. If your cat suddenly cannot use the back legs, is breathing with an open mouth, or is straining to urinate, see a veterinarian immediately.
Questions about BL40 Wei Zhong
Where is BL40 Wei Zhong on a cat?
Center of popliteal fossa at the stifle joint. Locations are approximate and are found by palpation by a trained practitioner.
What is BL40 Wei Zhong used for in feline acupuncture?
The source chart lists lumbar and back pain, hind limb paralysis, heat stroke as traditional indications. This is traditional use and not proof of effect.
Can I use BL40 Wei Zhong as a cat acupressure point at home?
Needling should only be done by a trained veterinary professional. Gentle pressure is sometimes shown by veterinarians, so ask yours first, especially if your cat is unwell, in pain or has not been examined.
Learn more and next steps
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Other Bladder acupuncture points for cats
Species: cat. Point data compiled by PetAcu from small-animal acupuncture textbooks and TCVM references (feline chapters). Back to the cat acupuncture points chart or the veterinary acupuncture points atlas.