What are these white balls? Should I be worried?

Latest Meows

1. Is it normal for a cat's personality to change after an injury?

   So my cat injured her wrist by jumping off the balcony a little over 2 months ago. I got her checked by a vet and the x-rays showed a partially dislocated

2. 10 year old female suddenly peeing everywhere but the litter box

   My 10-year-old spayed female has been peeing all over the place for the past 10 days. No new food, no new cats, no new furniture, no change of litter or

3. Set up outdoor cat litter area on currently stone floor in backyard?

   What litter mix and how deep to set up outdoor cat litter area of 6x3, on top of currently stone flooring? Would 1 foot deep with mix of dirt/pea gravels