My cats both needed their claws trimmed ever few weeks. Invariably, one claw would get super sharp and not have been pulled off yet on the scratching post so it needed a trim. Usually a dew claw. It was a good time to do them all. Saved them hanging up on things. It didn’t start happening until they got older, but I think it was less a matter of their varied health issues and more a factor of just not being as effective on the scratching post as their energy levels slowly diminished.