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Why is my neutered male dog mounting a spayed female puppy?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Male | neutered | 20 lbs

I have a neutered male 4 yrs old that is trying the mounting behavior with a 5 mos old spayed female? What so we do?

1 Answer

Most Helpful Answer

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Answered By C. Rathjens, DVM

Veterinarian

Published on December 11th, 2018

Since they are both neutered, this behavior is likely caused by over-stimulation. It's not sexual, it's just an inappropriate outlet for being overwhelmed or overexcited -- think really tired toddler starting to throw things and hit his friends. I would recommend redirecting him to a toy or playing with you, or remove him calmly from the situation. You don't want to punish him for the behavior, but you do want to stop it.

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