Hyperthyroidism

cat looking out window

Hyperthyroidism-  This is a condition where cats produce excess metabolic hormone, and if often affects older cats (95% are >10 years old).

Symptoms can include:

  • weight loss
  • increased appetite
  • increased drinking and urination
  • behaviour changes
  • poor coat quality and unkept fur
  • diarrhea or defecation outside the litter box
  • high blood pressure and heart rate
  • enlargement of the thyroid glands in the neck
Diagnosis is via a blood test which can also look for other causes of similar symptoms.
Treatment is lifelong and aims to reduce the excess metabolic hormone. Most cats go onto medication that is either once or twice daily tablets. Liquid medication is also a possibility. Blood tests are used to assess if the dose of medication is adequate, along with clinical signs such as weight increase and altered behaviour.
Other treatment options include surgical removal of the thyroid glands, a low iodine diet (as long as the cat will not eat any other food which would provide the iodine eg hunt / eat another cat’s food) or radioactive iodine treatment, and your vet should be able to discuss the advantages and disadvantages of this.
stretching cat on bricks
For further queries or information please contact us at Rosevean Veterinary Practice on 01736 362215 where one of the team can assist you further. Alternatively you can find us on Facebook!