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Finding urine in the wrong place is upsetting, but before you can fix it you need to know what you are dealing with. Cats can mark territory by spraying, or they can urinate outside the litter box for other reasons. The two look alike, but the causes and solutions are different.
Quick comparison
| Spraying | Peeing outside the box | |
|---|---|---|
| Posture | Usually standing, tail raised and often quivering | Usually squatting, as in the litter box |
| Where | Often vertical surfaces such as walls, doors and furniture | Often horizontal surfaces such as floors, beds and carpets |
| Amount | Usually a small amount | Usually a larger puddle |
| Common causes | Marking, stress, territory, other cats | Litter box problems, medical issues, stress |
These are general patterns, not rules. Some cats do not follow them, and a vet can help if you are unsure.
Why the difference matters
- If it is spraying, the focus is on stress, territory and marking. Our guide to stopping a cat spraying covers the steps.
- If it is peeing outside the box, look at the litter box set-up and health first. See why your cat may be peeing outside the litter box.
Always rule out a medical cause
Urinary tract problems can look like either behaviour. See your vet promptly, and treat it as an emergency if your cat is straining to urinate, crying, passing blood or producing little or no urine. A blocked bladder can be life-threatening, particularly in male cats.
Clues that help your vet
- Where and when it happens, and how often.
- Your cat’s posture, if you have seen it.
- Any recent changes at home, such as a new pet, a move or a new litter.
- Whether your cat is neutered or spayed.
- Photos or notes of the marks, and changes in drinking or litter box use.
If it turns out to be spraying
Once your vet has ruled out a medical cause and you are confident it is spraying, some owners look at a structured program written for exactly this problem. Cat Spray Stop is one of them (affiliate link). We have not tested it, so please read our review notes and check the refund terms first.
This article is general information and is not a substitute for veterinary advice.
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