You are here:

Cats/Scared cat


Hi Kate,

I have two 4 year old cats who are brother and sister (Mikasi-male and Niko-female). Four days ago I had to take Mikasi in for surgery to remove a cracked canine tooth. When I brought him home from surgery (the same day) Niko immediately went into a fight or flight reaction and did much posturing (hissing, low meowing, growling, rearing up on all fours and batting at him) if he looked at her or got close to her. It is still continuing but is a little better. He has not reacted aggressively back to her. Prior to this there has been no problems with the two of them together. Any advice you can give to help Niko overcome her fear is welcomed. Thanks in advance!

This is a classic case of what is known as aggression trauma. the cat who came back from the vet probably smells different and may even be a little upset by the experience themselves. the other cat is sensing this and is reacting to the strange smells and nervousness of the sick cat.

cats express fear or nervousness with aggression. It is not actual aggression just a reaction. The trouble is you have to rebuild the confidence in both cats in each other. the best way to do this is to go through a period of re-introduction. Please see my page about this process here

take your time with this process the slower and calmer the experience the better for your cats.

best wishes kate


All Answers

Answers by Expert:

Ask Experts


Kate Tilmouth


I can answer most day to day cat problems encountered by owners. I have a good understanding of cat behaviour and problems which may arise from changes to their daily routine. I can advise on cat training including litter training and general day to day cat care issues. I am not a vet and therefore cannot answer medical questions.


I run my own cat website at and have been a dedicated cat owner for over 20 years. I have encountered many different cat problems and situations and feel that i have a good understanding of cats and cat ownership.

I am a platinum member of Ezinearticles where i write mainly cat related articles.

Educated to High School level and have since worked for many years in a customer support based environment, gaining vocational qualifications.

©2016 All rights reserved.