I have 2 (indoor) cats who are 3 and brother and sister. They have always got along together really well. Yesterday evening they were on the balcony and when they came in the sister started hissing at the brother. This morning when I woke up everything seemed to be ok and I let them out on the balcony again and when they came in the same thing happened and she was hissing and growling at him. Why is this? Should I contact my local vet?
Pet's Gender: Female
Pet's Age: 3
Type of Animal: Cat
Name of Animal: Maggie
I am sorry you are having trouble with your fur kids.
How high up is the balcony?Can they see or hear other cats from there?are both of them eating?
Thanks so much for your reply with helpful information.
Please give me a few minutes to type detailed answer.
I am sorry you are worried.
Usually what you have described is misdirected aggression. What happens is one cat sees, hears or smells something that frightens her. Since she cannot reach the offender, she takes it out on whoever is nearby.
Read more here:
Since you are up high it could be as simple as a noise, a bird in a tree or a scent that humans cannot smell.
One other possibility is that she has a pain that she blames on her brother.
Look over both cats carefully. Feel all over their bodies and look in their mouths for any abnormalities.
You can always tell if a cat feels well by her appetite because sick cats stop eating first thing.
If you do not see anything but Maggie continues to get upset on the balcony keep them in until they both calm down and are getting along fine.
You can also get a feliway plug-in. It goes into an outlet like glade and Is calming to cats.
You can dab one drop of cooking vanilla on their tails. Once they smell the same they should go right back to getting along fine.
Feed them tasty food side by side like tuna so they feel good when they are together.
Please let me know how things go. If you have more questions just press reply and I will be here for you.
Warmest best wishes,
Expert in feline health and behavior. 20 years experience with cats.