If you have a cat who has been diagnosed as being hyperthyroid, you might be wondering what hyperthyroidism is exactly and what it means for your cat’s health.
What is hyperthyroidism?
Hyperthyroidism happens when the thyroid gland produces excess thyroid hormone as a result of abnormal functioning. Typically affecting older cats, it is the most common endocrine disease we see in the species. It affects both males and females equally, and any breed can develop the disorder — with Siamese cats showing somewhat increased incidence compared to other breeds.