Companion Animals

Cat Feline Hypercalcaemia Welfare

Hypercalcaemia in cats causes chronic illness including lethargy, vomiting, and kidney damage, often with an idiopathic form specific to the species.

Key Facts

Idiopathic hypercalcaemia is the most common cause in cats unlike dogs where malignancy dominates
Clinical signs include lethargy, constipation, vomiting, and increased urination
Untreated chronic hypercalcaemia causes progressive kidney disease through calcium crystal deposition
Dietary management with high-moisture, fiber-rich food reduces calcium absorption in idiopathic cases
Prednisolone reduces calcium absorption when dietary management alone is insufficient

Welfare Considerations

Cats with idiopathic hypercalcaemia experience chronic nausea, constipation, and lethargy that substantially reduces quality of life. Early diagnosis and dietary management prevent progressive kidney damage.

What You Can Do

Test calcium levels in cats with unexplained lethargy, vomiting, or increased urination
Follow dietary management recommendations strictly for cats with confirmed hypercalcaemia
Monitor kidney function regularly in cats with hypercalcaemia to detect progression