Is using a shock collar — also sold as an "e-collar," "remote training collar," or "stim collar" — cruel? The credentialed veterinary behavior community has answered this question, and the answer is yes. The position is not based on emotion or activist sentiment; it is based on a body of peer-reviewed welfare research and a long clinical record of harm.
The position of the major veterinary behavior organizations
The American Veterinary Society of Animal Behavior (AVSAB), the American College of Veterinary Behaviorists (ACVB), the British Veterinary Association, the European Society of Veterinary Clinical Ethology, the RSPCA, and the Pet Professional Guild have all issued formal position statements opposing the use of electronic shock collars on companion animals. Several countries have made them illegal: Germany, Austria, Norway, Sweden, Denmark, Slovenia, Wales, Scotland, and most recently Quebec (2024).
The reason is consistent across the literature: shock collars produce equal or worse training outcomes than reward-based methods, while producing measurable psychological and physical harm.
What "cruel" means in welfare science
In animal welfare research, cruelty is not defined by intent. It is defined by outcome: does the practice cause unnecessary suffering when alternatives exist? On both halves of that test, shock collars fail. The pulse causes a measurable stress response (cortisol spike, defensive body language, fear-related behaviors), and equally effective alternatives are well documented. A practice that causes pain when pain is not necessary meets the welfare definition.
The peer-reviewed evidence in brief
Multiple controlled studies have compared shock-collar training to reward-based training on the same training goals (recall, livestock chasing, obedience). The findings:
- Equal or worse training outcomes in the shock group.
- Significantly more stress signals in the shock group: lip licks, paw lifts, yawning, body lowering, tail tucks, elevated cortisol.
- Lasting fear or aggression in a meaningful subset of shock-trained dogs, often associated with the handler, the equipment, or whatever the dog was looking at when the shock was delivered.
- No "low-stim" defense in the data. Even at intensities the handlers reported as "barely perceptible," dogs showed measurable stress.
Cooper et al. (2014), Schalke et al. (2007), China et al. (2020), and several systematic reviews since converge on the same conclusion. For the full breakdown, see why e-collars and shock collars are harmful to animals.
The "but my trainer says they are humane if used correctly" defense
This is the most common pushback, and it deserves a direct answer. The credentialed scientific community has reviewed the evidence and concluded that there is no use case for shock collars on companion animals that cannot be addressed with safer methods. A trainer who is recommending shock equipment in 2026 is choosing a tool that the relevant scientific bodies have rejected. That is a meaningful methodology signal — see what to look for in a dog trainer and what to do if you hired a bad dog trainer.
For the parallel question on the "responsible use" framing for prong collars, see is there a safe way to use prong collars and e-collars?. For the legal picture on prong collars specifically, see are prong collars illegal?.
Where PawMates Pro fits in
Adoption screening at many shelters running PawMates Pro flags households that intend to use shock equipment, because the welfare and behavior literature suggests dogs placed into aversive-tool households are at elevated risk of returning in worse behavioral condition than they arrived. The behavioral evaluation, fear triggers, and any prior aversive-tool exposure are captured on the pet's profile and travel with them on a return — see the returned-pet FAQ.
For the full positive-training curriculum that replaces shock-collar work, see the behavioral solutions guide. More adopter resources on the PawMates blog.