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Why does my dog get aggressive at the vet and Petco groomer?

Updated on September 23rd, 2025

Pet's info: Dog | Border Collie | Male | unneutered | 3 years and 2 months old | 44 lbs

Dog freaks out when receiving his annual shots & I had to hold him down otherwise veterinarian would not have been able to complete. Took him to PETCO for grooming but three different PETCO staff couldn’t get near him. I have never had this dilemma with an animal not allowing anyone to touch them other than me. I'm just babysitting for my daughter but I'm seeing behavior that's telling me there is past abuse. I'm a soldier & gone a lot & will have to return to daugher eventually. Pelease advise.

1 Answer

Most Helpful Answer

Jessica Desrosiers

Answered By Jessica Desrosiers

Veterinary Technician

Published on March 10th, 2019

I'm not exactly sure this indicate abuse. Dogs that are under-socialized or are not used to places such as the groomers or veterinarian can act out like this from anxiety or stress, not necessarily abuse. That said, if you do suspect abuse, it would be best to speak with Loyal's owner about it.

I would definitely talk with Loyal's vet to see if there is anything that can be given, such as a sedative, before he has to go to the vet or other scary places. It is also a good idea to speak with a trainer or veterinary behaviorist in person that can help with desensitization training which can help Loyal get more used to these situations in a safe manner, and help him relax and settle in.

You can learn more about veterinary behaviorists here: https://www.dacvb.org/page/about
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