Male kitten neutered and his sister acts like he hates him.
Hi I had my 6 month old male kitten neutered today and he is look fine playing and eating well. Since he got home from the vets my older cat who is about 16 months old is acting like she hates him. She keeps growling and hissing at him. She won't let him anywhere near her. She won't eat and is hissing at me when I touch her. He keeps trying to go to her but she slaps out at him hissing. I feel so sorry for him. I also feel sorry for her because she just looks sad. I have read this can happen but is there anything I can do to help them be friends again.