How to Introducing Cats to Cats When One is Aggressive (Tips and Guide)

It would be nice if introducing cats to cats of yours is as easy as making them shaking hands then we can say “meet our new friends, his name is …”. Unfortunately, however, is not as simple as that. You must have realistic expectations from the beginning. First, you must realize and accept that your existing cats and the new cats may never be best friends, but at least they will get used to tolerating each other. Second, understand that not being in a hurry in the process of introduction will increase the success of your efforts.

Of course, some particular cats are better to socialize than other cats. For example, an 8 years old cat who had never been around other animals may never learn to share its territory with other animals. But the 8-week-old kitten separated from the mother and brothers/sisters from birth, probably would feel happy if it gets a new cat or dog to be its friend.

Cats are territorial animals, and they require a long enough introductory period with other animals to be able to know each other. Introducing cats to cats should not be in a rush to prevent fear and aggression. Here are some ways to ease the process of introduction.


Give your new cats cages complete with the sand box, food and water bowl, and beds. Feed your existing cats eat side by side with your new cat cages but do not be too close, so they can get used to the smell of each other with a nice atmosphere (at meal time). Gradually move the food closer and closer to each other until they can eat in peace side by side.


Exchange the Cats Equipment

Exchanging bedding or beds which the cats use, so they will have a chance to get used to the smell of each other respectively. You can also rub a towel into the body of a cat. And put a towel under the plate to eat your pet. If there are more than 2 cats, do the same thing to each cat.

When the cats have used litter boxes and eat regularly during the cages, give the new cats a special time for wandering free in the house and your other cats are placed in the cages. This exchange is to provide a way for them to know each others’ smell without having to face each other. It also makes the newcomer become familiar with the new environment without having to feel frightened by the other cats.


Next, after they are returned to their places, use a barrier door that used to hold the two places which still can make them look at each other, do this repeatedly, with the supervision of course.


Your Patience Will Be Paid Off

Avoid interactions between your cats that can create fear or aggression. If this attitude is neglected and becomes a habit, then it will be difficult to change. It is better to introduce them gradually and slowly to prevent fear or aggressiveness. You may get a little protest from your cats any time, but do not let nature takes place continuously. If your cats begin to be fearful or aggressive, separate them. And began to re-introducing them once again more slowly and gradually.

IMPORTANT NOTE: pay attention when you’re introducing cats to cats, there may be a misunderstanding when the cats give the signal to play, but other cats get a signal to attack. If you see this, immediately separate the aggressive cats and calm them down. Start again after some time for the introductions.

If there are aggressive cats and remain difficult to interact with, immediately contact your vet to get their professional advice.

For Immediate Attention

If you cats have health problems or injured, the introduction process may be somewhat inhibited. Check with your veterinarian, make sure your cats are healthy. You must also have at least 1 litter box for each cat, and you may need to clean their boxes often. Make sure that no cat is attacked by others while using their toilet box. And make sure they have a safe hiding place.

Keep your cats daily routine remains the same as before the new cats’ coming. If there is a small quarrel between your cats, you should not directly intervene and separate them. Keep them surprised by a loud noise, throw pillows, or spray them with water. Give them a chance to calm down before introducing them back.

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