Recognizing aggression and startling an aggressive cat without physical contact is usually effective. Avoid situations that you know make a cat aggressive. Separate cats that act aggressively toward each other and reintroduce slowly with positive reinforcement, as described in the Territorial Aggression section.
Say something: Startle your cat with a loud "ouch" or another word to end any rough behavior. This is effective for cats that are aggressive with people and may bite or grab onto your arm or leg. Then immediately remove yourself from the cat.
Our team of vets agree that using water bottles to discipline cats isn't the best course of action. According to Dr. Dwight Alleyne, “Spraying cats with water can create a negative association with humans. As a result, they may become more anxious or even aggressive over time.”
It's widely believed that spraying a cat with a water bottle when they're doing something you don't want is an acceptable and effective means of disciplining and teaching them to stop unwanted behaviors. This is totally wrong! In fact, spraying your cat with water does nothing but harm your relationship with your cat!
Of course, your cat may understand that the change in your volume means something is different, but yelling may scare your cat or call too much attention to negative behaviours. Yelling may cause your cat to feel stressed and anxious, which can cause additional misbehaviour.
Cats don't solve disagreements with aggressiveness. You don't want to get in the middle of two fighting cats, so try to distract them instead, with a loud noise or sudden movement to break their concentration on their fight. Don't punish your cat. Never punish your cat for aggressive behavior toward another cat.
Noise, boredom, or too much competition for resources such as food or the litter box can all cause aggression. Make sure you provide plenty of access to calm “escape” spots, playtime, and other resources.
With human visitors, cats displaying territorial aggression will typically approach or lunge at them, which may be accompanied by growling and hissing. Swatting or biting may occur even if the visitor stands still or attempts to move away. It's important to remember that cat aggression is the symptom, not a cause.
Dilated pupils, direct staring. Thrashing/twitching tail. Hissing, growling or spitting. The ears flatten against the side of the head or rotate backwards.
Cats bite because they are fearful, stressed, or frustrated. They do not act out of spite or anger. There is always a good reason (in their mind) behind the behavior.
Never hit or yell at your cat for biting.
This will only reinforce in her mind that hands cause pain or that petting isn't enjoyable and she will become even less tolerant of handling. She could also become afraid of you.
Fighting can lead to some nasty injuries on cats, especially from cat bites. It may also leave your cat feeling very stressed, which can also cause some serious illnesses, so it's best to do what you can to prevent your cat fighting in the first place. Consider time inside.
Cats are smart and they learn quickly. Placing a cat in the time-out room works as an effective deterrent and can correct many destructive or aggressive tendencies if used moderately and consistently.
Daniel Møllgaard And agreed, stating: "Blowing air on them is the same as telling them they're in danger of getting a whooping, in cat language. Don't do it unless they do something wrong."
Cats can also have Post-Traumatic Stress Disorder (PTSD), reports Atlanta Pet Life. They can have it from abuse, abandonment, loss of an owner, and a life-threatening disaster. Treating a cat with severe PTSD should be done under the supervision of a professional.
Territory: Cats are territorial animals and they will often fight to defend what they believe is their territory. This is most common with cat fights that happen outside the house, where your cat believes another cat has encroached on their land. Alternately, a feral cat could believe your cat should not be here.
You should never use physical punishment, yelling, or loud, sustained noises because these can increase fear, anxiety, and aggressive behaviors in cats. You also don't want to put your hand or any other part of your body between cats that are fighting or try to pull them apart, because you can get injured.
If one cat keeps attacking a particular cat, the first step is to separate the cats from each other completely — in separate areas of the house. Do not allow them to paw at or smell each other through a door. If they must be in adjoining rooms, place a barrier at the bottom of the door.
Overhead movements or certain noises may frighten an abused cat, triggering a long-term memory of prior trauma. It's possible your cat will carry that unpleasant memory for the rest of his life.
Redness, swelling, draining pus, or pain at the bite wound. Fever. Diarrhea and/or stomach pain. Vomiting.
Hugging your arm or leg and biting you is a classic cat hunting move. When cats catch large prey, they will often grasp it with their front legs and then bite it while 'bunny kicking' with their back legs. If your cat is doing this to you, they are misdirecting their hunting behaviour onto you.