Signs of chronic kidney disease can include:
- Weight loss
- Drinking and urinating more than usual
- Loss of appetite
- Dehydration
- Dull, matted coat
- Sleeping more than normal
- Lack of grooming
- Bad breath
- Weakness or lethargy
Unfortunately, none of these signs are specific for chronic kidney disease in cats, so your vet may need to do a number of tests to find out what is causing them.