The only thing I need to shave is when their feet's fur is matted due to urine spots, as such, it can't breathe, thus, must be shave off
but I don't have to do that in the past years as I no longer use litter tray, because as they pee on litter tray in the past, the litter tray holds the urine, and the urine flows around, thus got on their feet. Now I use towel, at their favorite urine spot, so as they pee, the towel soaks the urine