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Can neutering an older male dog stop house marking behavior?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Male | unneutered | 4 years and 11 months old | 82 lbs

i have a 5 year old boxer which i just adopted to go with my 2 year old boxer. the 5 year old is not fixed and is marking in the house. can neutering the dog help with this problem or since he is 5 years old is it too late. i am so discouraged

3 Answers

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on November 24th, 2016

This can be a frustrating problem in intact males! The first thing I would do right away is have Junior neutered - many times, this will decrease the marking behavior dramatically even if it's already been going on for several years. After this is done, you will likely still need to work with him a bit on housetraining. Treat him like a young puppy who has no idea where to potty - take him out frequently, praise and reward for peeing outside, and supervise constantly indoors to prevent accidents. If you see him starting to lift his leg, clap your hands and say "ah-ah!" or "no!" - he will soon learn that this is not acceptable in the house, if you are consistent. Don't relax your supervision until he has had at least two weeks with no accidents at all, then increase his freedom in the house very slowly. This will take time and patience, but it can definitely be done.

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    Answered By Stacey Anstaett, DVM

    Veterinarian

    Published on August 16th, 2019

    Has he always done this? If this is new behavior, it may be that he has a medical condition that is causing him to urinate more frequently resulting in more marking. A urinary tract infection, bladder tumor or bladder stones, kidney disease, endocrine diseases such as diabetes, or prostate disease since he is intact--any of these could cause him to urinate more. Take him to your vet to rule out a medical cause. It may help to have him neutered, as he's less likely to feel the "need" to mark his territory if he is neutered. Try some potty training steps as suggested in the article below. Dog diapers are not ideal in my opinion. The skin can become very irritated if they are not changed very shortly after they become wet, and regular bathing is needed. https://www.spca.org/file/pet-university/Urine-Marking---Dogs.pdf https://www.petcoach.co/article/top-5-tips-to-potty-train-your-dog-young-and-old/ I hope that is helpful for you, thanks for asking PetCoach!

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    Answered By Jenny, DVM

    Veterinarian

    Published on November 5th, 2017

    At that age, neutering him will not stop marking behavior. He will always do that, but you can train him to not do it inside. It is essentially like he is not housed trained and does not know that is not acceptable. A dog his age can be housed trained though.

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