Types of aggression
If your cat is aggressive, ask your vet for advice. There may be a medical reason for their aggression. If not, ask your vet to recommend a qualified behaviourist.
Your cat could become aggressive for a number of reasons. By understanding the causes of aggression you may be able to help your cat to feel calm, secure and less aggressive.
Types of aggression include:
Defensive/fear aggression: your cat will usually run from anything they think is a threat, but they may defend themselves if they can't escape, or has previously learned that fleeing doesn't work.
Play and petting aggression: cats generally prefer short but frequent interactions, which is normal in feline etiquette. In contrast, people often interact less often but more intensely. This can be a bit much for some cats and many have a limit to how much petting they can handle.
Territorial aggression: usually occurs when two cats meet on disputed ground or when one cat is passing through another cat's territory.
Pain-induced aggression: cats suffering from pain have lower tolerance levels and so are more likely to become aggressive.