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Why is my cat aggressive towards her kittens after spay/neuter?

Updated on September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 1 year and 3 months old

I recently got my cat & her three kittens fixed at the ASPCA truck last Saturday. The pamphlet said that for the first couple of days, cats might be aggressive towards fixed pets because they smell different due to the other animals on the truck. It’s been almost a week & my cat is still growling & hissing at her own kittens. I’ve wiped them down with kitten wipes to get the other animal smell off their coats but she’s not even letting up a little. I’m getting worried About her behavior

1 Answer

Most Helpful Answer

Jessica Keay, DVM

Answered By Jessica Keay, DVM

Veterinarian

Published on September 6th, 2019

I am sorry to hear about Karma! I would recommend getting a Feliway multicat diffuser which your can order online but you can also find in some pet stores or vet clinics. It produces a pheremone that can be calming and can help decrease intercat aggression https://www.feliway.com/us/Products/FELIWAY-MultiCat-Diffusery . A calming supplement such as Zylkene or Composure may also be helpful.
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