My female cat turned EVIL! Why is she acting like this to my male cat?

This actually happens a lot when one cat comes home from the vet's office. Right now, Crystal doesn't recognize Thomas as the boy she's always known. Cats recognize people and other cats by scent, and Thomas is now covered in the scents of the vet's office, which Crystal doesn't like. Once those scents wear off, things should get back to normal. In the meantime, you might be able to help things normalize by taking a slightly damp towel and rubbing Crystal with it. Then rub that same towel on Thomas to transfer Crystal's scent to Thomas. She'll be more likely to be friendly with him if her own scent is on him.

There are a number of factors at play -

First off, our the kittens still with Mom? Female cats will sometimes not tolerate male cats on their territory. Thomas is still an intact male, hormonally. He will still smell and act like a male until the hormones completely leave his system in a few weeks.

The second factor is smell - Thomas doesn't smell right to Crystal. He smells like vet and anesthesia, and sickness - She either thinks he's an unknown male cat on her territory, or that he is sick, or maybe a combination. Pair this with female cat and kittens, and you get trouble.

So, in the meantime, keep the two cats separate for a few days. After everybody seems calm, than let them together again.

Also, once Crystal has weaned her kittens, than get her fixed immediately after. There's no need for more kittens in the world and Crystal will appreciate not going into heat every few months.

Mine began hissing and spitting at her brood of 5 because they have been approximately 2 months previous (an identical age as her as quickly as I have been given her). She nevertheless feeds them whilst she needs to, she will have the flexibility to come again in as though it is a accountability, yet then she's off out back. She was once one in each and every of these loving cat and now she hates me! however the certainty is, she does not want to feed them anymore yet feels obliged, even with the reality that she does sometimes hit them whilst they attempt. She does not desire them in her residing house anymore. She needs them long gone.

My guess is that she is under what I call a litter pressure, meaning that she is under a large amount of stress due to her pregnancy for such an old female. Cats who are age 7 and older are considered "senior cats". Your female cat is too old to be taking care of a litter, and it is likely that if the father has not helped her she would be angry at him. It sounds weird but it's the most likely explanation. Hope this helps, and I hope that everything turns out okay!

Your cat doesn't need to be a kitten machine, get her spayed NOW. You need to get all of your pets fixed anyway! Chances are that these kittens will be put down as adults anyway when people disown when they mature so then they will be put to sleep.

Neutered males made no difference. Maybe she's trying to protect her litter away from him.

She might be in heat again and Thomas is the closes male cat she has. And shes trying to get his attention yeah it weird that they screech and scratch at each other but that's what they usually do

first of all, eww your cat got pregnant from it's own son?!?!?!?! animals can sometimes be so weird.....

anyway, it's probably hissing because she doesn't think that thomas is the cat that you had before, because now it looks "different" in a way..ew.

anyway, get the mom spayed.

She upset because now she can't have "kitty-sex" with him. It's her hormones. She'll get over it. Punish her when she gets upset with Thomas. Put her in a cage and make her watch you play with Thomas. Something to let her know firmlythat what she is doing is wrong.

you definetly need to get the mom fixed too.

thats all i can say.

edit-get the mom fixed asap!