Cats are fastidious and easy to litter train. However, your cat may suddenly stop using the litter box. Manage this quickly before it becomes habitual. The most common reason your cat will avoid the litter box is because it is too dirty. If it is stinky or too wet, your cat will find a less appropriate place to go. Thus keep the box meticulously clean. If your cat is stressed, she may hide out and not brave her way to the litter box. Stress could be caused by new household members including other pets, houseguests, construction in or around your house, or even something as simple as moving the furniture. Mediate the situation as you can and consider setting up a litter box closer to her hiding place till she adjusts. Sometimes litter box issues can indicate a medical issue. Contact your pet clinic Marietta, GA to learn more.