BL21 Weishu Dog Acupuncture Point | Canine Gastric Acupressure Guide | PetAcu

BL21 Weishu Dog Acupuncture Point | Canine Gastric Acupressure Guide | PetAcu

BL21 Weishu Dog Acupuncture Point

Wèi Shū 胃俞

Professional veterinary acupuncture overview of BL21 Weishu in dogs, including anatomical location, stomach support applications, classical functions, and safety notes.

Quick Answer: BL21 is located 1.5 cun lateral to the lower border of the T12 spinous process. It is commonly referenced for loss of appetite, indigestion, and vomiting.
Chinese Name 胃俞
Pinyin Shèn Shū
Meridian Bladder Meridian (BL)
Anatomical Location 1.5 cun lateral to GV5, below the T12 spinous process.
Main Indications Loss of appetite, indigestion, vomiting, gastric discomfort, poor digestive function.
Classical Function Back-Shu of Stomach; regulates and harmonizes Stomach qi.
Meridian Color Bladder Meridian | Water | Black / Deep Blue

Clinical Overview

In veterinary acupuncture practice, BL21 is a major thoracic back-shu point used for dogs with stomach disharmony and upper digestive dysfunction.

It is frequently discussed in protocols for gastric motility, appetite regulation, and nausea or vomiting support, especially when paired with other digestive points.

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.

BL21 canine acupuncture point placeholder image
BL21 Canine Acupuncture Point Placeholder

Use this area for the canine BL21 map or your future TCVM illustration.

Pinpoint Location

Anatomical Landmark

Locate the twelfth thoracic vertebra and measure 1.5 cun laterally from the lower border of its spinous process. In canine anatomy, this is the standard landmark for BL21.

Primary Clinical Indications

  • Loss of appetite: Commonly used for reduced food intake and stomach qi deficiency.
  • Indigestion: Frequently referenced for middle-jiao disharmony.
  • Vomiting: Often included in gastric support protocols.
  • Gastric discomfort: May be used when the stomach region is tender or reactive.

Recommended Point Pairings

In clinical veterinary acupuncture, BL21 is often paired with other stomach and digestive support points depending on presentation.

Stomach Qi Support

Frequently paired with CV12, ST36, BL20, and SP6 in digestive support protocols.

Vomiting & Nausea Support

Often combined with PC6 and related anti-nausea points for upper GI regulation.

Gastric Motility

May be integrated into multimodal support strategies involving acupuncture, hydration, diet management, laser therapy, and rehabilitation.

Modern Veterinary Interpretation

From a modern veterinary rehabilitation perspective, BL21 is positioned near the thoracic region associated with gastric motility and digestive regulation pathways.

Integrative veterinarians may include this point within broader gastrointestinal management plans involving acupuncture, electroacupuncture, and dietary support.

Safety & Needling Notes

Professional Veterinary Use

Because BL21 lies over the thorax, needling depth and angle should only be handled by trained veterinary professionals. Oblique or transverse technique is essential to reduce risk.

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.

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