Help

You are here

Common signs include

Thyroid hormones control the speed of your cat's metabolism, but when in excess, can cause a range of signs. The more thyroid hormone produced, the higher the metabolic rate and the more calories your cat burns.

 

 

cat-map

Not all of these signs will occur in every cat with hyperthyroidism.

 

 

 

 

Poor body condition is
a common sign of
hyperthyroidism.

Hyperthyroid cats
might be nervous
or aggressive.

An enlarged thyroid
gland is sometimes
visible but more often
can be felt.

* Photographs: Courtesy of Dr Hans Kooistra, Utrecht University