
Understanding Feline Hyperthyroidism

If your cat is losing weight, acting restless, or eating more than usual, hyperthyroidism could be the cause. Learn what it means, how it affects your cat, and how NuCat offers a safe, permanent cure.
What Is Feline Hyperthyroidism?
Feline hyperthyroidism is the most common hormone-related issue in middle-aged and older cats, affecting about 10% of cats over 10 years old. It’s caused by an overactive nodule on the thyroid gland(s), which releases too much thyroid hormone. Cats have two thyroid lobes, one on each side of their neck, and either or both can be affected. This extra hormone revs up their metabolism, leading to weight loss and putting strain on the heart, digestive system, and other organs.
If your vet diagnoses your cat with hyperthyroidism, it's important to start treatment to manage the symptoms. Without treatment, symptoms worsen, causing severe weight loss and potentially serious issues with the heart, kidneys, and other organs.


Common Symptoms
Increased Appetite
Weight Loss
Increased Thirst
Increased Urination
Unkempt Coat
GI Upset Including Vomiting and Diarrhea
Behavior Changes (Increased Activity, Restlessness, or Irritability)
Vocalization