Why won't my cats get along anymore?

Cats identify each other by smell and since he came home from the vets, he doesn't smell the same as before so your other cat doesn't recognise him.

I had a similar experience when our male cat sneaked outside and hid in the engine space of a parked car. When I finally managed to coax him out and brought him back indoors, our female cat took one sniff and began attacking him. I separated them overnight in the hope that she would calm down, but no such luck. As soon as she saw him the next morning, she flew at him. I had to keep them separated and introduce them to each other gradually as if they had never met before. It was almost a week before she could even tolerate his presence in the same room as her. Thankfully now they are back to being friends again.

Whilst keeping your two separated, simple things like swapping over their litter boxes and bedding will help intermingle their scents and make them smell more familiar to each other again. Once your cat has acquired the "communal" scent of your home, your other cat will be fine with him again. Rewarding both cats with food treats when they are calm around each other will help too.

I had a similar trouble with a sickly kitten and her confused Mummy. The kitten was taken for emergency treatment at the vet and stayed in over night on intensive therapy but when she returned home Mishka (Mum cat) didn't recognise her. I came to the conclusion that the hospital smell from the vet had replaced the kitten's personal scent. I tried a few things but there was only one that worked. I skipped a feed so that the grumpy Mummy cat was really hungry. Then I smeared tinned cat food over the unfortunate kitten, especially on her face and backside and down her tummy. When I returned the kitten to the nest, Mishka was so intent on cleaning all the cat food from her baby that she forgot to hiss and spit!

It worked very well in this case and it is something you might try if you don't mind the mess. Maybe it only works with mums and babies or maybe we just got lucky but it's worth a go. You may need to put them in an enclosed space so they are near each other. And don't worry, if mr grumpy doesn't respond, the unfortunate kitty will clean himself anyway.

Good luck!

Ellie.

The medicine may have changed how he smells for awhile that is practically the same as bringing home a brand new cat. There is also jealousy, possibly the other cat thinks you were with the other cat the whole time it was gone and is mad at it. make sure you give it plenty of attention as well and hopefully in a day or two they will be back to being old friends again.

that's in all probability the vet scent on the unwell cat. in case you're able to desire to make certain into the vet's returned place of work section you may see canines and different cats and animals being boarded. this might scare a animal. as properly, the unusual human beings did something to its physique it somewhat is sore to touch for a whilst. It contains a diverse scent abode, to that end it somewhat is abode satisfaction of associates won't be able to are conscious of it. you're able to desire to grant all of them time to get better earlier they are in a position to regroup to the former earlier well-being middle bypass to.

Cats are VERY JEALOUS animals it might be showing that because you were showing more attention to the other cat, that the other one is becoming a bully try being more affectionnate to the other cat more and see how that goes.