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Your Resource Center for Feline Hyperthyroidism

We are a team of veterinary experts who wanted to create an unbiased informational website for the most common hormonal disease affecting cats.


Hyperthyroidism is the most common glandular diseases in cats. While it is more commonly found in older cats, younger cats can be affected as well.

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Diagnosing hyperthyroidism is not complex. In most cases only a physical examination and blood work is needed.

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Do you know what to look for? Weight loss is the most common symptom, but there are many other telling signs to keep an eye on.

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You have some treatment options to think about. Compare advantages and disadvantages of each to find the best solution for you.

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Find a Treatment Center

Specialty centers approved by the NRC to perform I-131 therapy.


Aftercare is an important part of any procedure performed on your cat. Make sure the healing process is safe and efficient.

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Managing Sequelae

Hypertension and cardiac disease are common sequelae of hyperthyroidism, and managing them is critical.

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From Our Blog

Apr 2017

Some symptoms of feline hyperthyroidism are easy to overlook. It may be tricky to notice subtle symptoms, but the combination of symptoms points to feline hyperthyroidism. Early intervention is your best course of action for treating your cat’s hyperthyroidism. Learn the signs so you and your veterinarian can plan the best course of treatment for your cat! Weight Loss – If your cat is maintaining a healthy appetite, or eating more than usual and still losing weight, he or she could have feline hyperthyroidism. If you suspect your cat is losing weight......

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