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Cat spraying indoors: what to do

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Cat Spray Stop
A guide for owners dealing with spraying, according to the vendor. Use it after a vet check.
Spraying or peeing?
Spraying is a small amount on a vertical surface with the tail raised; inappropriate peeing is a puddle on a flat surface. For the latter, see peeing outside the box.
Step-by-step plan
- Vet check: urinary disease can mimic spraying.
- Neutering greatly reduces spraying in most cats.
- Block views of outside cats at windows; secure the cat flap.
- Separate resources: food, water, litter, beds, scratching posts in different places.
- Clean with enzymatic cleaner, not ammonia.
- Keep a diary of when and where it happens.
Cat Spray Stop
A guide for owners dealing with spraying, according to the vendor. Use it after a vet check.
Multi-cat homes
Tension between cats is a major cause. Provide high resting places and escape routes. International Cat Care has detailed guidance at icatcare.org.
When to get help
If spraying continues after these steps, ask your vet about referral to a qualified feline behaviourist.
Common questions
Why has my cat suddenly started spraying?
Often a new stressor: a new cat outside, new pet, house move or building work. Rule out medical causes first.
Do female cats spray?
Yes, though less often than unneutered males.
Does punishment stop spraying?
No. It increases stress and usually makes it worse.
What we’d look at next
Cat Spray Stop
A guide for owners dealing with spraying, according to the vendor. Use it after a vet check.
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If you also have a dog whose behaviour is part of the household stress.
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Get the free PDF
A short PDF: seven short, reward-based training sessions to build focus, a reliable sit, settling on a mat and loose-lead basics, plus a cat litter-tray checklist.