The Overactive Thyroid: Managing Hyperthyroidism in Your Cat
Introduction Hyperthyroidism is a medical disorder characterized by the overproduction of thyroid hormones (T3 & T4 ). The disorder occurs due to a benign (noncancerous) enlargement, termed adenomatous hyperplasia , in the thyroid glands which are located in the neck area of a cat. Because the thyroid hormones influence many organs in a cat's body, hyperthyroidism can lead to secondary cardiovascular problems such as cardiomyopathy . Symptoms: "Fat Cat" That Is Underweight One of the typical signs of hyperthyroidism is a cat that eats very much but still loses weight. Symptoms include: Weight loss: In spite of polyphagia (increased hunger). Polydipsia and Polyuria: Increased thirst and urine output. Bad condition of coat: Fur becomes untidy, greasy, or matted. Increased activity: Hyperactivity, irritability, vocalization, especially at night. GI Problems: Sometimes accompanied with vomiting or diarrhea. Heart problems: Rapid heart rate (in sever...