Found a suspicious puddle somewhere it definitely shouldn't be? What about a stinky surprise in the corner? Litter tray avoidance is a common issue cat parents deal with. While it can feel a bit personal (it's your good rug, after all), your cat isn't doing it out of spite. They're telling you something.

A good chunk of cat owners report elimination problems with their cats, and some even surrender their pets because of it. That's a lot of very preventable heartbreak.

The good news? Most litter tray issues are fixable once you know what you're looking for.

Key Insights:

• Litter tray avoidance is common and almost always has an identifiable cause

• Medical issues should always be ruled out first 

• Stress, cleanliness, placement, and litter type are the most frequent non-medical triggers

• Accidents outside the tray leave behind scent cues that can reinforce the habit if not cleaned properly

• With a bit of detective work, most cats can get back on track 

First: Rule Out a Medical Reason

Before you rearrange the furniture or try a new litter, a vet check should be your first move. Cats are masters at hiding discomfort, and the litter tray is often where health problems first show up.

Conditions like feline idiopathic cystitis (FIC), urinary tract infections, bladder stones, kidney disease, diabetes and arthritis can all make using the tray painful or urgent. If using the tray hurts, your cat will quickly start associating the box itself with that pain and avoid it, even after the medical issue is treated.

Older cats can also develop cognitive changes or mobility issues that make getting in and out of a standard tray difficult. A lower-entry tray can make a surprising difference for a senior cat.

If you notice your cat straining to urinate, crying in the tray, passing pink or red urine, or producing little to no urine, that's an emergency. Get to a vet straight away.

Is the Tray Clean Enough? 

The general rule is to scoop at least twice a day, or ideally more often, especially if you have multiple cats. A full litter change will be needed from time to time, depending on what type of litter you use - you should wash the tray with mild soap too. Using a litter box safe gentle enzymatic urine cleaner to eliminate residual odours after you scoop can really help - Dr Lisa’s cat wee cleaner works wonders. Strong-smelling disinfectants are a no-go; they can be just as off-putting to cats as a dirty tray.

It's also worth thinking about where the tray is. Cats like privacy and quiet. A tray next to the washing machine or in a busy hallway might get avoided simply because it doesn't feel safe enough to use. Somewhere low-traffic, with a clear exit route, is ideal.

Could it Be the Litter Itself?

Cats can be surprisingly opinionated about what goes under their paws. Scented litters are a common culprit. Most cats usually prefer unscented, clumping cat litter that's easy to dig in and doesn't overwhelm their senses.

If you've recently switched brands, that might be your answer. Any litter change is best done gradually, mixing the new in with the old over a week or so.

The same goes for the tray itself. Some cats dislike covered trays; others won't touch an open one. If your cat has a preference, they'll let you know.

Stress and Changes at Home

Cats are creatures of routine, and disruptions to that routine can show up in unexpected ways. A new pet, a new baby, a house move, rearranged furniture, a new neighbourhood cat, or even a change in your schedule can all cause enough stress to trigger litter tray avoidance.

In multi-cat households, one cat can be quietly blocking another's access to the tray, often without any obvious confrontation. The general recommendation is one tray per cat, plus one extra, spread across different rooms so that no cat can guard them all.

What to Do About the Accidents That Have Already Happened

Once a cat eliminates somewhere outside the tray, the scent left behind acts as a signal. Without proper cleaning, they'll often return to the same spot.

Regular household cleaners won't cut it here. Enzyme-based wee cleaners are specifically designed to break down the proteins in cat urine and faeces that cause lingering odour. Our cat pee spray does exactly this. It’s formulated with natural ingredients, and neutralises odour at the source rather than just masking it. 

And if your cat has been going outside the tray and you're noticing residue on their coat or paws, cat wipes can help with a gentle clean-up, especially for cats who don't love water.

When to Go Back to the Vet

If you've addressed the obvious environmental factors and the problem persists, it's worth another conversation with your vet or animal behaviourist. Litter tray problems can have overlapping causes that need to be addressed together to fully resolve.

It can be helpful to keep a log of where your cat is going, when, and what is happening at the time. Patterns can reveal a lot.

Finding the Right Litter Match

Your cat isn't making a statement. They're communicating the only way they can. With a bit of patience, consistency and the right tools, you’ll likely see positive results. 

If you're reassessing your litter setup, the CAT by Dr Lisa clumping cat litter is made in Australia from Australian oats, so it's plant-based and 100% biodegradable. It's also fragrance-free and gentle on the paws, which most cats prefer.

Always consult your veterinarian if you're concerned about your cat's health or behaviour. This article is intended as a general guide only.