Updated On September 23rd, 2025
I have two (sister) cats and like all siblings they grew up and got along fine. One got pregnant and had three kittens and since then the other cat growls and flees at the sight of the other cat or her kittens. Why is that so and is there anyway to mend the relationship because i feel the aggresive cat is drifting away and we might lose her.
1 Answer
Published on December 18th, 2016
Changes in the social structure in a household like this can be very stressful for cats. They are not a very social species by nature, and it's often very hard for them to accept "newcomers" - even if these are her sister's kittens. I would recommend making sure that the aggressive cat has her own area where she can get away completely from the kittens and your other cat whenever she wants to - this should be a comfortable room with a litter box, food and water bowls, a cat tree or other resting spot, etc. This way, she can be on her own if she prefers to, but can still come out an interact with the other cat and her kittens if she chooses. Feliway diffusers in the areas where she spends most of her time may also help to reduce her stress. It may take her weeks, months, or even longer to adjust, so be patient - some cats never really adjust, unfortunately, and may need to be kept in separate areas of the house to keep everyone happy.
1Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.