Intact males are particularly prone to aggressive behavior. AC & DC are 2 1/2 yesr old sisters, living in-doors. Perfectly content with each other since birth, doing everything together. Occasionally, two friendly cats may be resting when a frightening incident occurs, such as a bookshelf falling over. more. Fortunately, there are many things you can try to do to bring about a more peaceful cat household again. Are you trying to figure out how to handle cat aggression towards other cats? Fighting Cats is near the top of the list of questions about cats behavior I receive every day. Cat Fights: What to do When Your Cats Turn on Each Other. I go into all of the steps to try in much more detail on my page regarding Fighting Cats, but would be happy to outline a few steps here as well. Would you like to see what cat toy is responsible for my two cats getting along again. Then the cats attack each other. I just want my calm home back. Kittens are especially energetic. I have 3 adult cats and usually they all get along very well. Other than a constant need to have their ears cleaned, the vet […] Crazy Cat Lady: Why are my sibling cats always fighting?! They have all been to the vet and have ruled out major health issues. Neuter the cats. Never let the cats “fight it out.” Cats don’t resolve their issues through fighting, and the fighting usually just gets worse. Neuter the cats. Interrupt aggression with a loud clap of your hands or spray from a water gun. An aggressive cat is usually behaving that way for a good reason. If it has no outlet for all this energy, the cat may exhibit some crazy behavior. Many domestic cats spend their days alone indoors while their people are at work. Ok, I have a 2 year old cat and the 3 year old cat. Medical problems can cause a cat to be in pain, grouchy or confused, which increases the likelihood for aggressive behavior. They've always loved eachother, grooming each other, cuddling up, and everything. So my male cat who is about 3 years in age is acting all weird all the sudden. Dig in and find out why your cats are fighting and bring peace to your residence. I've been a cat owner for most of my life and have learned many tips and tricks for keeping cats happy and healthy. Hi, My name is Holly, and i have had my 2 cats, Sox and Toaster, for almost 2 years now, they are 100% indoor cats and they were recently both Spayed (end of march). When I came back from vacation all of a sudden they are at odds with each other. While dogs usually seem to enjoy being around their humans 24/7, cats like to get away from it all … Cats don't get aggressive out of nowhere.