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Is it harder to introduce an older dog than a puppy to my dog?

Updated on September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | unneutered | 1 year and 9 months old

Is it true that dog like of my dogs age are tends to get aggressive if i bring dog lf same or elder age to home and if i bring puppy to home they can adjust with puppy but hard to adjust with elder dog

1 Answer

Most Helpful Answer

Lauren Kennedy, DVM

Answered By Lauren Kennedy, DVM

Veterinarian

Published on August 29th, 2017

This can be a difficult question to answer because it will vary from dog to dog. The dog's personality will determine whether or not they adjust well to a new housemate. It does not necessarily matter whether the dog is older or younger.

Some things you can do in the home when introducing new dogs are keeping the interactions very limited and making sure the dogs are under supervision the whole time they are getting to know each other. Also avoid feeding the dogs or giving them treats while they are together as this can sometimes cause aggressive behavior. Just be patient and work with the dogs individually and together and they should be able to get along fine.

I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.
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