Litter box problems & urine marking
What's going on
When a cat stops using the litter box, the human jump to 'they're mad at me' or 'they're doing it on purpose' is almost always wrong. Cats don't do anything 'out of spite.' They are saying something — usually that something hurts, or something is wrong with the box, or something is stressing them out.
What to try
Vet visit, today, before anything else
Urinary tract infections, bladder stones, crystals, FLUTD, kidney issues, diabetes, hyperthyroidism, arthritis (so they can't get into a high-walled box), constipation — all of these show up as 'litter box problems.' A urinalysis and a thorough physical are step one. Always.
The box itself
- Number: One box per cat, plus one. Two cats? Three boxes. In different locations.
- Size: Big. As big as you can fit. Many cats hate small boxes.
- Type: Uncovered, low-sided, no liner. Storage tubs make great litter boxes.
- Litter: Soft, unscented, sandy. Most cats like fine-grain clay. Skip pine, perfume, crystals.
- Depth: 2–3 inches. Not more.
- Location: Quiet, away from food and water, easy escape route. Not in a closet with a door that can swing shut.
- Hygiene: Scoop daily, ideally twice a day. Wash the box monthly with mild soap.
When a cat says 'no' to a box, they're not being difficult. They're being clear.
Marking vs. inappropriate elimination
Urine marking is small amounts, often on vertical surfaces (walls, furniture, doorways), and almost always communication — about another cat, a stray outside, a household stressor. Treatment involves removing the stressor where possible, plug-in Feliway diffusers, more vertical space, more enrichment, and sometimes medication.
Inappropriate elimination is full-volume urination or defecation outside the box — usually on horizontal surfaces (rugs, beds, laundry). This is almost always a box problem (number, type, cleanliness, location) or a medical problem.
Run an experiment
If you suspect the box, don't take the old one away. Add a new one — different litter, different location — right next to the old one. Let the cat vote. Whichever they use, you have your answer. Jackson Galaxy calls this the cat 'buffet' approach, and it works.
What to avoid
- Don't punish for accidents. The cat learns to be afraid of you, not the box.
- Don't rub their nose in it. Ever.
- Don't use ammonia cleaners — they smell like urine to cats.
- Don't move the box suddenly. Move it 6 inches a day toward the new spot.
When to ask for help
If medical is ruled out and you've tried more boxes and softer litter and you're still seeing accidents, get a certified cat behavior consultant on board. Most cases resolve within a few sessions when the right variable gets tweaked.
Watch & learn
A few curated videos from trainers we trust. Click any thumbnail to play.
