Feline hyperthyroidism is a disease caused by the excessive production of the hormone, thyroid (thyroxin) by the thyroid gland. This gland is in the neck3.
The term “hyper” in medical parlance means: high, beyond, excessive, above normal 2.
The term “ism” means: condition of, practice of, theory of1.
Feline hyperthyroidism is the most common feline hormone disorder.
The thyroid gland enlarges causing a swelling in the neck.
The heart works harder. It can lead to a “form of cardiomyopathy”, which in turn leads to congestive heart failure.
Other illnesses associated with old cats can mask hyperthyroidism in cats.
Please see a good vet. Blood test are required.
Objective: return thyroid production to normal. Methods:
The opposite is feline Hypothyroidism.
1. 2. medical-dictionary.thefreedictionary.com
3. Cat Owner’s Home Veterinary Handbook page 385 – 386, by Drs Carlson and Giffin.
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