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My 4-month puppy bites family and guests when excited. How to stop?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 3 months and 15 days old | 26 lbs

I have almost 4 month old puppy and he's well behaived as well . But as soon as he meets any new or people from family he gets really aggressive and tried to bite them . I've worked on his bites and he behaives really nicely it's just the people in our family like kids or adults he's seen and played with them before , he tried to bite them with excitement . Can you advise how to stop his behaviour ?

2 Answers

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on September 29th, 2017

Congratulations on your new puppy! Play biting and being excessively "mouthy" is very common in puppies. And it only get worse the more excited they are. I have not personally had luck with the techniques of saying "No!" or holding the muzzle. I that makes puppies more excited. My general rule for puppies is that you make a high pitched squeak (like a littermate puppy would do if they bit too hard), then walk away from the situation. More than anything, your puppies wants to play with you. If you walk away, it is negative reinforcement, so they are less likely to do that behavior again. Depending on the puppy, the goal is to get them to look away from you or start doing something else before you engage in play again. And make sure that everyone uses this technique. Bongo should not get any attention if he is biting. I found that a long rope toy made a good toy to play with my puppy because there was lots of toy for him to bite at without touching my skin. I also found that allowing him to play with other dogs is a great way for him to learn what is appropriate play. I took my dog to doggy day care twice a week as a puppy which really helped with his energy level as well as appropriate play technique. And finally, start a puppy class. A basic obedience class is so important for a puppy. They want to behave, but don't know what to do with their energy. I hope that was helpful! Good luck! Thanks for using Petco Pet Education Center, formerly Petcoach.

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1Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

    Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

    Published on November 21st, 2017

    Play biting and being excessively "mouthy" is very common in puppies. I have not personally had luck with the techniques of saying "No!" or holding the muzzle. I that makes puppies more excited. My general rule for puppies is that you make a high pitched squeak (like a littermate puppy would do if they bit too hard), then walk away from the situation. More than anything, your puppy wants to play with you. If you walk away, it is negative reinforcement, so they are less likely to do that behavior again. Depending on the puppy, the goal is to get them to look away from you or start doing something else before you engage in play again. I found that a long rope toy made a good toy to play with my puppy because there was lots of toy for him to bite at without touching my skin. I also found that allowing him to play with other dogs is a great way for him to learn what is appropriate play. I took my dog to doggy day care twice a week as a puppy which really helped with his energy level as well as appropriate play technique. And finally, start a puppy class. A basic obedience class is so important for a puppy. They want to behave, but don't know what to do with their energy. I hope that was helpful! Good luck! Thanks for using Petco Pet Education Center, formerly Petcoach.

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    3Pet Parents found this answer helpful

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