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Kidney disease in cats

Quick answer

Chronic kidney disease (CKD) is one of the most common conditions in older cats. Early signs include **drinking and urinating more**, weight loss, and reduced appetite. CKD cannot be cured but **prescription renal diets, hydration support, and regular monitoring** slow progression and keep cats comfortable for months to years.

Key takeaways

  • Increased drinking and urination, mild weight loss, reduced appetite, and poor coat are early signs. Many cats show no symptoms until significant kidney function is lost — regular senior bloodwork is essential.
  • Chronic kidney disease cannot be reversed, but early diagnosis and management slow progression and maintain quality of life for months to years.
  • Prescription renal diets with controlled phosphorus and protein help most cats. Your vet will recommend the right diet based on disease stage and whether your cat will accept the food.

The full guide

Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.

Frequently Asked Questions

What are early signs of kidney disease in cats?
Increased drinking and urination, mild weight loss, reduced appetite, and poor coat are early signs. Many cats show no symptoms until significant kidney function is lost — regular senior bloodwork is essential.
Can kidney disease in cats be reversed?
Chronic kidney disease cannot be reversed, but early diagnosis and management slow progression and maintain quality of life for months to years.
What should cats with kidney disease eat?
Prescription renal diets with controlled phosphorus and protein help most cats. Your vet will recommend the right diet based on disease stage and whether your cat will accept the food.