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House-soiling: Trouble beyond the litter box

Unfortunately, cats don't automatically make the connection to the litter box. Even cats that know the drill will sometimes choose another spot at home. "House-soiling" can become a concern for even the best cat owners. It can be a sign of a serious health issue or simply the result of changes around the house. Pay close attention for clues to put an early end to a nasty problem for both you and the pet you love.

Signs of a problem:

  • A pattern of urinating and/or defecating outside the litter box
  • Urine spraying — evidence of urine marks around doorways, windows or new objects in the house


  • Health issues ranging from diabetes mellitus to lower urinary tract disease
  • A dirty litter box or inadequate number of boxes in the home. At least one box per cat is recommended.
  • Litter box is located in a remote, noisy or unpleasant surrounding
  • Litter box is inappropriate — covered boxes can maintain odors and large cats may not be able to move round enough in small boxes
  • Wrong type of litter or sudden change in litter type
  • Social changes, such as the addition of a new cat or the sudden presence of outdoor cats

If you change your cat's litter box infrequently, travel a lot, or have multiple cats at home, you're more likely to experience a house-soiling problem. Consider making adjustments based on the some of the factors described above. If the problem continues, see your veterinarian to investigate possible health problems and how the right Prescription Diet® cat food might help.