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Why is my 10-week-old puppy suddenly aggressive towards my family?

Updated On September 23rd, 2025

My 10 week old puppy diesel has all of a sudden came aggressive against my family. I don't know why, he's only. A puppy please help :(

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on March 4th, 2018

Hi there! I'm sorry to hear that you're having this problem with Diesel. Aggressive behavior in a 10 week old puppy is certainly cause for concern. I would strongly recommend getting in touch with a behavior professional in your area who can evaluate Diesel in person to help you determine what is causing the aggression, and will also put together a detailed plan to work on the problem before it gets worse. You can search for a qualified professional in your area here: https://www.rspca.org.uk/adviceandwelfare/pets/general/findabehaviourist

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