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Join our community of cat lovers on the Mumsnet Cat forum for kitten advice and help with cat behaviour.

New kitten, resident cat not happy

26 replies

pulledmuscle · 21/01/2026 18:37

We got our first cat under a year ago, she’s 9 months old now. At the time I wanted at least 2 from the litter so they would have company growing up but the others were given away. We now decided to adopt another from the shelter as everyone had advised our first kitten was still young enough to be accepting of a new addition.
Unfortunately the shelter didn’t provide much advice, and we searched up tips on introduction online. Kept them separate and swapped items with their scent on. Day 4 and we’ve let them see each other in the same room. First kitten has always been extremely timid and loving and was shocked at first, then scared of the 2 month old kitten (who is ting by the way). The shock has now turned into aggression and she will make a beeline for the new kitten and try and wrestle her.
I don’t know what to do or how long this will last, I’m disheartened and keeping them separate is tough, the older kitten sits outside the new kittens room and the younger one wants to explore outside the room.
Had a call with the online vet who advised one of the kittens may have to be rehomed which has left me in tears because I could never think of rehoming either.
Please tell me the introductions will work and situation may improve.

OP posts:
Gettingbysomehow · 25/01/2026 21:13

4 days OP? What? My 17 year old freaked when I brought the kitten home. There was carnage for weeks.
Now they are the best of friends, they chase and play and curl up together.
These things take time. Nobody needs to be rehomed. Give it time and don't rush it. The black one was the kitten. She's hard to see in the photo.

New kitten, resident cat not happy
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