Hyperthyroidism in Cats: Signs, Causes, and Treatment
Cats have two thyroid glands in their neck. Hyperthyroidism occurs when one or both of their thyroid glands are overactive and produce excess hormone. The overproduction of thyroid hormone results in an increased metabolic rate, which is why cats with hyperthyroidism typically lose weight despite having an increased appetite. This differs from hypothyroidism in cats, where the thyroid is underactive and isn’t producing enough hormone. “There is a great deal of research being performed on hyperthyroidism in cats,” says Dr. Sadek, which will help veterinarians better understand what causes the thyroid’s malfunction. What veterinarians do know is that excessive thyroid hormones are typically produced by a benign growth called a thyroid adenoma in one or both thyroid glands located on a cat’s neck. Occasionally, there is an ectopic thyroid tissue in the cat’s chest, and rarely, about 1–3% of the time, there’s a cancerous thyroid tumor. No definitive research pinpoints what causes these growths, but potential contributors may include age, genetics, diet, and environmental factors.,Jump to section What Is Hyperthyroidism in Cats? Signs and Symptoms of Hyperthyroidism in Cats Diagnosis of Hyperthyroidism in Cats Hyperthyroidism Treatment in Cats Life Expectancy for Cats with Hyperthyroidism Hyperthyroidism in Cats FAQs
