Cat: They toilet outside the litter tray

It looks like a training problem, but it is often the result of illness. Getting the order wrong means it never resolves.

Also called · toileting accidents · not using the litter tray · urinating anywhere

What it looks like

Why it happens

An unpleasant experience creates avoidance of the place

Digestive and lower urinary tract disease are easily affected by diet, and the resulting diarrhoea, constipation, frequent urination and painful urination hurt. That unpleasant experience triggers avoidance of the toileting place, and they end up going elsewhere.

In an older animal it may be a sign of disease

The increased drinking and urination of kidney failure is sometimes read as the problem behaviour of "toileting outside the tray". It is a symptom, not a behaviour.

Stress is taken seriously too

Environmental stress is increasingly seen as one cause of feline idiopathic cystitis and of digestive signs in dogs.

What to do

Investigate and treat the underlying disease first

Do not reverse this order. With urolithiasis, for example, treatment that dissolves the stones or uses a low-mineral therapeutic diet with increased water intake can make the "inappropriate toileting" disappear on its own.

Increase water intake

For urinary problems, getting more water in is the foundation. More water bowls, or mixing in wet food.

Audit the toilet setup

Check location, number, litter type, cleanliness and access. For an older animal, a lower-sided tray alone sometimes solves it.

Reduce the stressors

Therapeutic diets containing supplement ingredients intended to reduce anxiety are also being developed.

Watch out for

Caution · Telling them off makes it worse

If toileting itself is learned as the bad thing, they hide to do it, and the problem becomes harder to see.

See a vet if

Straining to urinate with nothing coming out — go immediately (urethral obstruction is an emergency)

Blood in the urine

A sudden increase in drinking and urine volume

Common questions

Can’t I just retrain them?

If it started as a physical problem, training will not resolve it. Sudden-onset accidents in particular need disease ruled out first.

Related behaviors

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    General behaviour and nutrition information. It does not replace diagnosis or prescription. Similar behaviour does not always have the same cause, and the cause is not necessarily diet or environment — have a vet rule out illness first, and consult a behaviour specialist where needed.

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