How Cats Warn You There is a Problem
In the wild, cats instinctively cover up their droppings so that predators cannot track down their scent. They also do this in their litter box, which is handy because it means you don’t have to.
Photo via Imgur
If your cat stops doing this though, it could be a sign of a problem. The problem could be something as simple as the litter box type or it could be that your cat is feeling stressed or anxious. They may even be trying to warn you that there is a problem with their health.