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Why are my unspayed female cats fighting, hissing, and spraying?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 1 year and 5 months old

I have two cats both 17months old, they use to get along till two weeks ago they started hissing, fighting and spray pissing everywhere. I seperated the both and try to make them see each other everyday but they both just hiss. My partner tried stopping the fight but he got serious bite and scratches which have healed now. They haven't been desexed or spayed. They're both female. Please help

1 Answer

Most Helpful Answer

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Answered By Lauren Jones VMD

Veterinarian

Published on June 20th, 2017

This sounds like a very frustrating issue! It is difficult to determine why Chino and her friend are suddenly having so many issues. At this point, the best thing you can do is get both cats spayed to remove hormonal influences that may be contributing to their aggression with one another. You can also use calming pheromone collars or diffusers (Feliway is one brand) for both cats. If the aggression continues after those options, it may be worth consulting a veterinary behaviorist to evaluate their behavior in your home. Keep both cats separated unless you are directly supervising them and avoid putting any part of your body between them if they fight. If they do begin to fight, dump water on them to distract from the situation and separate cats immediately. I hope that all goes well!

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