Feline Hyperthyroidism

by Michael
(London, UK)

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 symptoms:

  • Restlessness
  • Irritable
  • Pace up and down
  • Excessive hunger
  • Excessive food consumption
  • Weight loss
  • Vomiting
  • Increased volume of faeces
  • Hair loss and hair pulls out easily

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.

Diagnosis

Please see a good vet. Blood test are required.

Treatment

Objective: return thyroid production to normal. Methods:

  • Drugs
  • Removal of the thyroid gland
  • Administering radioactive iodine at a specialist clinic

Associated Page:

The opposite is feline Hypothyroidism.

Notes:

1. 2. medical-dictionary.thefreedictionary.com

2. http://www.medterms.com/

3. Cat Owner’s Home Veterinary Handbook page 385 – 386, by Drs Carlson and Giffin.

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About Michael Broad

Michael is retired! He retired at age 57 and at Aug 2018 is approaching 70. He worked in many jobs. The last job he did was as a solicitor practicing general law. He loves animals and is passionate about animal welfare. He also loves photography and nature. He hates animal abuse. He has owned and managed this site since 2007. There are around 13k pages so please use the custom search facility!

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  1. Pingback: My cat has constantly enlarged pupils. Any ideas? | Pictures of Cats

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