Cat Behavior

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Cat Behavior

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Why is my cat peeing outside the litterbox?

There are many reasons that a cat may urinate outside of the litter box. Some of these may be medical in nature (such as a urinary tract infection, urinary bladder stones, arthritis, or feline lower urinary tract disease) so it is important for your veterinarian to perform an examination and run diagnostic tests (which may include blood work, a urinalysis, urinary culture, or radiographs) to help determine the cause. After an examination and diagnostic testing, your veterinarian can help you come up with a plan to help treat your cat’s condition.

If all medical causes have been ruled out, then your veterinarian may be concerned about a behavioral cause. Cats can be stressed by changes to their routine or environment. Cats can also sometimes urinate outside of the litter box if there are not enough litter boxes in a multi cat household. We recommend that there be at least one litter box per cat in the household, plus one extra (so at least 3 litter boxes in a 2 – cat household). We also recommend that there be at least one litter box on each level of the house, if you have multiple floors in your home. This is especially important with older cats who may have arthritis.

Your veterinarian may recommend medications to help with inappropriate urination.

Medical recommendations for inappropriate urination may include:

  • Antibiotics – if an infection is found in the urine
  • SSRIs – such as fluoxetine (Reconcile) or Clomicalm (clomipramine)
  • Anti-nerve growth factor antibodies (Solensia) – which is a monthly injection that may help with FLUTD or arthritis
  • Diet changes – Purina St/Ox or Royal Canin Urinary SO to help prevent crystal formation and reduce inflammation of the urinary bladder
  • Nutramax Cosequin – glucosamine/chondroitin supplement

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