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Will neutering my muscular dog affect his build or physique?

Updated On September 23rd, 2025

Pet's info: Dog | Boston Terrier | Male | unneutered | 2 years old | 40 lbs

We are thinking about getting tux neutered however I was wondering what the lack of the testosterone hormone would do to his build. He is a very muscular and fit dog in perfect condition how will neutering him effect this

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1 Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on September 10th, 2017

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. Neutering will do very little to his build as long as he remains active & has an age appropriate diet. Neutering early, at 5-6 months can result in a leaner build, & generally a slightly taller dog as the growth plates in the legs stay open a little longer, but at this point in Tux's life you will see very little change in his build. Hope this helps. Take care.

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