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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

1 Answer

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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