Before anything else, it is important to check that the tools used are adequate to your cat’s size and to the length of its coat. If you are using inadequate tools you could irritate your cat’s skin and make brushing unpleasant.
It is recommended to handle your cat from a very young age in order to teach him a series of practices, including brushing. If at adult age your cat does not want to be brushed, it is best to take it slow. You can start with a small area, preferably a zone where it likes to be stroked. Let him get familiar with the brush and allow him to scent and nuzzle it. Your cat needs to associate brushing with a pleasant event! Day after day, you will be able to progressively increase the brushed surface and brushing time. You can use a detangling and polishing spray to help.
If despite all of these precautions your cat let will not let itself be handled, it may be useful to see a veterinarian specialized in behaviour problems.
