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My cats are mean to my dog. How do I stop their aggressive behavior?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Female | unspayed | 1 year and 1 month old | 64 lbs

Hi, we have 2 cats, females, around 3 years old. Both of them are really mean to our dog. They have been together since we got Bianca, even when she was a puppy they didn't like her. She's not aggressive towards them at all, she just wants to say hi and sniff them, but cats just instantly smack her and hiss with ears back. And that makes her excited and she starts to jump around and cats run away and she follows. It's been like this for almost a year. What should I do?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on September 8th, 2018

The best thing to do would be to keep them separate. We know that Bianca isn't trying to hurt the cats, but see it from your cats' perspective. This loud, big, rambunctious dog (scary!) is coming up to us, maybe it wants to eat us! We should protect ourself! Oh, no, it's getting worse! RUN! Cats are inherently wary of dogs. There have been cases of cats and dogs cohabitating peacefully and one day the dog fatally attacks a cat. Allowing the cats a safe, peaceful area of the house will help a lot with the tensions. They make baby gates that have a small door that a cat can pass through. You could put this gate across a room so that they have a space that they are always safe in.

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