• I have 2 cats. One female, spayed, 6 years old. I male, neutered, 3 years old. They've never been best friends (i.e., they don't snuggle together), but got along fine enough - they play sometimes, hang out near each other, eat next to each other. They've lived together for 3 years (since the male was 2 months old). A few weeks ago, I took them both to the vet on the same day for their comprehensive/shots/ and dental for the female cat. When I brought them home, both of them were hissing at one another and the female even started growling. Later that evening, it got more explosive, and the male was chasing the female and she hid herself in my closet. She wound up pooping in the closet and seemed quite scared. The male seemed to be the instigator. Previously, I'd only ever taken them separately to the vet, and it was typical for the one who stayed home to hiss at the one that came back from the vets office. I at that time decided to separate them, to slowly reintroduce them. I I kept them in separate rooms, but fed them at the door, so they were near each other when eating. After about a week, the female wanted to come out of her room and I was playing with both cats in the main room with a toy wand. However, when I left the room for about 10 minutes, I heard them starting up again and growling/hissing and once again the male chased the female cat. I again, began separating them at this point. I started back up with the feeding at the door, switching rooms (to re-associate them with each other's scents), using the calming spray, but the female always hisses/growls at the male and the male seems to try to move into her space and instigate the altercations. I'm concerned about their behavior, and not sure what to do. I can't leave them together unsupervised anymore.

    Hi Elizabeth,
    I recommend that you call and talk to your local veterinarian about this issue. You have done all the right things to try and defuse this situation and get them to tolerate each other again. This may require medication or different behavior modification to resolve. Your local vet can get some more information from you and recommend the behavior modification plan that is specific to your individual cats.

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