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When's the best time to spay my chihuahua puppy? What about weight?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | unspayed | 4 months and 16 days old | 4.4 lbs

At what age should I neuter my dog? She's 4 months old, female chihuahua. I was told by one vet that she can be neutered at 6 months even before her first period. Another told me not to neuter her before she is 4 years old because she can gain weight and have health complications if she is neutered before she's 4 years old? What do you recommend for this kind of breed? And will there be any changes after she is neutered?

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on September 17th, 2017

Having her spayed at 4 years of age is taking a big chance health wise, she will be in high risk of mammary gland tumors. i would personally recommend having her spayed at the age of 6 months, before her first period. changes you can expect is mainly weight gain, but as long as you are on top of it she should not become obese.

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