My 19 yr old cat has started to bite me in anger while I sleep. He has always slept with me, this is something that he just started doing and I don't know what to do about it.

  • 3
    How do you know it's anger? Maybe you roles over on him or scared him... or at his age he might be starting to suffering from dementia or other issues and be coming out of his dreams convinced something is about to attack him.
    – keshlam
    Commented Jun 19, 2016 at 20:37
  • You have a good point, I thought about the dream part and the rolling over on him, but not the dementia. Thanks
    – Maritza
    Commented Jun 21, 2016 at 13:43
  • 3
    At this age I'd suspect possible pain and make a vet visit a priority.
    – Kate Paulk
    Commented Jun 22, 2016 at 13:35

1 Answer 1


There are a few possible reasons of it:

  1. Disease. Your cat is rather old, so he might have some health problems, suffer from pain. Unfortunately, animals can't say what bothers them. The way they communicate with us is by their actions and changes in their behaviour. Some animals start peeing everywhere, some don't want to eat food they usually eat, some of them become aggressive. You should take your cat to a vet.

  2. Again, reason, that is connected with your cat's age - changes in his mind. Amentia I would say or dementia. Only after visiting a vet you will find it out.

  3. New members of your family. Maybe a boyfriend/girlfiend/baby, etc. Some old can't start feeling loneliness or they feel how your attitude to them has changed. Or it maybe a passage or stress.

In any way, I wish your cat is fine.

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