• Environmental and Social Factors – Some
  cats may avoid using a litter box that is placed in a high traffic area.  They might feel intimidated by a more
  dominant cat or they may have had a negative experience when they were near the
  litter box.
• Marking Behavior – It is normal for
  cats to mark their scent.  Unneutered
  male cats and most unsprayed females will also use urine spraying as part of
  their sexual behavior.
• Medical Causes and Problems – If
  your pet experiences this behavior change, you should bring them to our
  practice for a physical examination and urinalysis to check for infections,
  cystitis, arthritis, kidney problems, diabetes, and other medical issues.
• Feline Idiopathic Cystitis – This medical
  condition increases the frequency of urination. 
  It can also cause difficulty and pain when urinating and your pet may
  have blood in their urine.

Many cats that are
abandoned by pet owners due to house-soiling end up in shelters where they are
often euthanized.  Although it can be a
complicated problem, there are ways to prevent house-soiling. After you determine
the cause behind your cat’s behavior problem, you can make the necessary
changes to prevent house-soiling in the future.