In the early stages of chronic kidney disease (CKD), there may be very few signs. Once clinical signs are present, it indicates that the kidney has been damaged by 70%. As kidney function declines, the symptoms progress and the cat begins to experience more consequences.
The commonly seen symptoms include:
  • Increased thirst
  • Increased urine production
  • Reduced appetite
  • Gradual weight loss due to poor appetite and loss of protein in the urine
  • Vomiting due to toxin buildup in the system
  • Lethargy/sleeping more
  • Weakness due to muscle wastage, anemia and low blood potassium
  • Dehydration due to excess water loss into the urine
  • Bad breath (halitosis) — Due to toxin build-up and oral and gastric ulceration 
  • Blood in urine