Kidney disease in cats: knowing when it's time
Kidney disease is the long goodbye of cat ownership: often years of good management, then a turn. Here's how to recognise the turn, and what a gentle ending looks like.
Updated August 2026
The long road, and its end
Chronic kidney disease is how a great many beloved old cats leave, often after years of good management with diets, fluids and medication. The end-stage announces itself when nausea starts winning: food sniffed and refused, weight falling despite everything, more hours hunched by the water bowl than sleeping in the sun. Subcutaneous fluids at home can hold a plateau for a long while; when even fluids stop buying bright days, the plateau is over.
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What to watch, cat-specifically
- Refusing even the sacred foods: the treat that never failed, failing
- Weight loss you can feel: spine and hips sharp under the fur
- Stopped grooming; coat greasy and staring
- Hiding, or sitting hunched facing nothing
- Vomiting, drooling, or the ammonia breath of late uraemia
Why home matters for kidney cats
These cats are old, thin, often carrier-phobic, and know the clinic far too well. A home goodbye (on the windowsill, in the sun, no carrier) is the version of this day most kidney-cat owners wish they'd known was possible. The cat guide covers how vets keep it calm, including for hiders.
You don't have to read the signs alone
A home quality-of-life consultation puts experienced eyes on your pet in their own space, and many vets will talk it through by phone first. Get matched with a home visit vet; wanting to talk before deciding is the most normal request there is.