I've had my chinchilla for eight months now and I've just noticed a small patch of fur on her left hip that is longer than the rest of her fur and it seems to be getting longer. It doesn't seem"clumpy" just long. It doesn't seem to bother her unless I tug on it. I tried combing it too but it doesn't come out. is this something I need to remove? If I need to remove it, how do I do it without hurting her? What happens if I just leave it there?