In brief
The classic signs of feline diabetes are drinking and urinating more, losing weight despite eating well, and reduced energy. Some cats show only subtle changes at first.
Signs you may notice at home
- Water bowls empty faster or the cat seeks water in unusual places.
- Urine clumps become larger or the litter tray needs cleaning more often.
- Weight and muscle are lost even though appetite is normal or increased.
- The coat may look less well cared for and activity may decline.
- Weakness in the back legs or walking low on the hocks can occur with diabetic neuropathy.
When is it urgent?
A diabetic cat that stops eating, vomits, becomes very lethargic or appears dehydrated needs prompt veterinary attention. These signs may indicate diabetic ketoacidosis or another concurrent illness.
Tests used by your veterinarian
Blood glucose and urinalysis are central to diagnosis. Because stress can cause temporary hyperglycaemia in cats, a single high result is not always enough. Fructosamine reflects average glucose over the previous weeks. A urine culture, blood pressure measurement and investigation for concurrent disease may also be appropriate.
Do not rely on symptoms alone
Kidney disease, hyperthyroidism and several other disorders can produce similar signs. A structured examination and testing are therefore more useful than trying to diagnose diabetes at home.
Conclusion
Track body weight, water intake and litter-tray changes. If a pattern changes, arrange testing rather than waiting for your cat to look obviously unwell.