Why is my 3-month-old puppy suddenly aggressive and biting family?

Question

My dog 3 months old suddenly shows to much of aggression to my family and my other dogs and starts from today yesterday he is normal but today he shows aggression and trying to bite kindly help me out what's going on. Pet's info: Dog | Mixed Breed | Male | unneutered

David Darvishian · Accepted Answer

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about Bruno. When a puppy shows aggression, I immediately advise neutering him to remove the male hormone-driven behaviors. I would advise taking him to your veterinarian for their opinion also. He may have some medical reason for his sudden onset of aggression. Your vet can gather a history, perform an exam and then offer a diagnostic/treatment plan based on their findings. Possible tests include fecal/blood/urine tests and x-rays to look for underlying medical problems that could cause aggression. If a behavioral problem is suspected, then neutering, behavior modification, and drug therapy can be tried. I wish you good luck with Bruno

Why is my 3-month-old puppy suddenly aggressive and biting family?

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