About cat's litter box

Keep it Private
Cats prefer to eliminate away from their living areas (the equivalent of "the nest" area). Keeping their litter box away from traffic-heavy areas of your home provides them with the sense of privacy and security needed.

Stay away from food and water dishes
Never place the litter box next to the cat's food and water dishes. In fact, avoid having these at the same room altogether. This goes back to the need to eliminate away from "the nest". If you place them too close, your cat may be forced to make a choice between feeding and using the litter box… and since food is only in the dish, you could be facing litter box avoidance issues.

Keep it Quiet
Make sure your cat isn't startled by any sudden noises while using the litter box. These could be children running by, a door that suddenly opens on the box or a washing machine starting a new cycle. Some cats are more sensitive to sudden noises than others. For these cats, it may only take one bad scare to drive them away from the litter box for good.