My cats have never gotten along even though they are spayed/neutered. I didn't do my research on how to introduce a new cat to a home with another cat so she rejected the kitten right away and he grew to be very aggressive towards her. Besides a "time out" to separate them once a fight does break out, I use several methods to reduce the amount of fighting between my cats. So if you'd like to know ways to keep cats from fighting, read on.
This will stop cats from fighting because when the cat can't see, it will be more focused on escape than fighting. Your cat will quickly back out from under the towel.
I've never used this method because it gets mixed reviews. While some people say it is a very effective way to stop cats from fighting, other people say it will cause your cat to fear you. That's not a risk I'm willing to take, personally.
The theory behind this is that animals smell each other, so if they smell the same, they will be less territorial, which is one common cause for aggression in cats. You could use other fragrances but you MUST check with a vet to make sure the one you choose is safe for cats to ingest since they clean themselves. To use this method, simply put a drop or two on your hands, rub them together, and pet your cats as usual.
When the aggressor gets into "hunting position," crouched down with its bottom wiggling side to side, clap your hands loudly and say no firmly. If this doesn't work, get closer to the cat. This will be intimidating enough that it will reduce the cat's aggression because it will feel the need to retreat.
There are products available that simulate cat pheromones, which make a cat feel more at home and less territorial. These synthetic cat pheromones are available in plug in form. I use them, and as they say, they are odorless for humans and have reduced my cat's aggression. These are available through your vet and online.
If your cats are aggressive toward each other, these methods will reduce their aggression. In the meantime, be sure to separate them when you are not there to supervise them. And if the aggression continues, talk to you vet about treatment options. He can prescribe medication for both the aggressor as well as anti anxiety medication for the "victim."
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