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Why is my dog aggressive to people after an accident? What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Border Collie | Male | unneutered | 10 months and 21 days old | 10 lbs

My dog has become aggressive towards strangers since he got run down and ran away from us, and has sign aggressivness towards us the owners and some people he knows aswell. Can you please reassure me on what I should do?

1 Answer

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on July 15th, 2017

If this has only recently happened i would give him some time, he is likely still scared by it. If it has been a while he may have developed a ptsd like mental state or he may associate people with the accident. On the same hand who could have an underlying injury from it. I would have him checked mefically first, then if it seems behavioural i would have a behaviourist assess him to determine his mental state.

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