@WhiteRose not sure if it is she/he - so I'll say this - s/he is so gorgeous. One thing I hated the most about fluffy cats - these MATTED thing - I have to take then like 2-3 times a year to have her trimmed. I tried so hard to keep 'em tidy ... I failed always.
@ridor9th Have you tried olive oil? take a bit and rub it at the base of the mat and after a few days the mat should fall off on its own.
@WhiteRose it worked?
@ridor9th yep
@ridor9th This is much easier then struggling with your cat or having to take in constantly. her behind if she is touchy that may be different. it all depends on how well she allows you to touch her. if she allows you to be able to at least get to the area to do then try if she is going to be difficult then well you may still want a groomer to handle her.