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Litter Training Kittens and Solving Common Problems

Most kittens use a tray instinctively — but the setup decides whether they keep using it. How to get it right from the start and fix lapses.

By Dr Hana LindqvistVeterinary review: Dr Elena Marsh6 min readPublished 2026-09-29Updated 2026-09-29
Illustration of a person rewarding an attentive dog with a treat and clicker

Instinct does most of the work

Cats are born with the instinct to dig and cover, so litter training is usually about providing the right tray in the right place rather than teaching. Most kittens copy their mother and arrive already trained.

The setup that works

Get the tray right and most problems never start.

  • One tray per cat, plus one spare, in quiet low-traffic spots away from food and water
  • A shallow, uncovered tray for small kittens; low sides matter more than style
  • Unscented, fine, clumping litter about 3–5 cm deep
  • Scoop daily and wash the tray weekly with mild, unscented soap

Teaching a kitten that has no idea

Place the kitten in the tray after meals and naps, and gently scratch the litter with a finger. Praise calm use. Never rub a kitten's nose in an accident — it teaches fear of you, not use of the tray.

When a trained cat stops using the tray

Rule out illness first. A sudden change in toilet habits is a medical symptom until proven otherwise. Cystitis, bladder stones, arthritis and diabetes all cause house-soiling. Straining, crying or blood in the urine — especially in a male cat — is an emergency.

  • Clean soiled areas with enzymatic cleaner to remove scent markers
  • Review the tray: location, cleanliness, litter type, covered versus open
  • Reduce stress: new pets, building work and household changes are common triggers
  • Add trays in the places the cat has chosen, then move them gradually

Frequently asked questions

How many litter trays do I need?
The rule of thumb is one per cat plus one spare, spread across different locations so no cat can guard them all.
Is covered or uncovered better?
Most cats prefer uncovered trays with good visibility, but individuals vary. Offer both and let the cat vote.

References

  1. International Cat Care — litter tray advice — https://icatcare.org/advice/