There are many symptoms of cat kidney failure before death, such as poor energy, loss of appetite, slow movement, rapid breathing, incontinence of urine and feces, increased eye and nose secretions, etc. Cats with kidney failure will lose weight before dying, are not interested in other things, will not eat, drink or move, and will have a peculiar smell in their mouths. If your cat is found to have symptoms of kidney failure, you need to seek medical treatment promptly to avoid delaying the condition and reducing the occurrence of death.