From the Editors of The Daily Cat
The problem you describe is a common one. Without toilet paper, kitties will sometimes resort to carpet cleaning, so to speak. You needn’t get rid of your carpeting or your cat, however, to solve the issue.
Cats are inherently clean. In the wild, odors can attract predators, so staying clean is a life-or-death effort. If you feed your cat a high-quality food, your pet’s body will absorb more nutrients and less waste will result. If the problem is chronic and tied to digestive sensitivities, your veterinarian may prescribe a low-residue intestinal formula cat food.
Loose stools can also be tied to heat, ingestion of fur, stress and certain health issues. Schedule a visit with your cat’s veterinarian to rule out anything that may be medically treatable. When cleaning your carpet, use an enzymatic product. Compounds within such products can break down proteins and allow you to better wash away soil and odors.