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My puppy is 4.5 months. Is this the right age to neuter him?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 10.8 lbs

I have a new puppy from a rescue and the plan is to neuter him next weekend. He is 4.5 months, and I have been reading recommendations to neuter between 6 and 8 months. What is recommended and why?

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on May 17th, 2019

In small breed dogs some vets recommend waiting until the dog is older (6-8 months). The though is their lungs are better developed in an older puppy which makes the anesthesia part of the surgery "safer". That being said, many vets, including myself, have done thousands of neuters of dogs as young as 8 weeks or age with no problems. I think at 4.5 months he should be just fine to be neutered next week.

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