A Complete Overview of Hyperthyroidism in Cats

Having a feline that survives its senior years in great health and joy is an objective of many animal guardians. The most prevalent endocrine disorder in cats is hyperthyroidism. As felines age, they become more susceptible. Therefore, we opted to discuss cat hyperthyroidism, a necessary condition for cat guardians to be aware of. You can see below the important details about hyperthyroidism.

What is hyperthyroidism?

Hyperthyroidism is also known as thyrotoxicosis. A cat’s enlarged thyroid gland in the neck produces too much of the hormone thyroxine. The benign growth called an adenoma is the most popular source of bigger thyroid glands. Cancerous thyroid adenocarcinomas trigger some very uncommon situations of hyperthyroidism. 

Hyperthyroidism is a prevalent condition that mostly influences middle-aged and senior felines. Because of the overall result of thyroid hormone, many health concerns may occur because of the thyroid condition. Prepare a wellness plan for your pets to avoid these conditions. There are vet websites on the internet; their wellness page can help you decide on your pet’s wellness plan.

What are the symptoms of a cat’s hyperthyroidism?

Hyperthyroidism in felines commonly materializes in many indicators, several of which might be light initially but escalate as the problem aggravates. Among the signs of feline hyperthyroidism are:

  • Diarrhea
  • Restlessness
  • Weight drop
  • Vomiting
  • Increased urination
  • Hyperactivity
  • Appetite stimulation

Any indicators that your feline might be coping with hyperthyroidism, regardless of how small, require an urgent trip to the veterinarian and start a therapy method. Hyperthyroidism creates consistent weight loss in felines if the problem is not taken care of. This may cause them to build hypertension due to their chronically elevated core body temperature, heart rate, and respiratory rate, along with their constant frustration and uneasiness.

How is a cat’s hyperthyroidism diagnosed?

If a vet believes a cat has a thyroid issue, they will do a physical exam and touch the feline’s neck to feel for a swollen thyroid gland. Visit Veterinarian Huntersville NC, to get your pet checked. The following analysis techniques are ones your vet may advise.

T4 Blood Test

T4 (thyroxine) levels that are abnormally high are related to hyperthyroidism. In particular circumstances, additional assessments of thyroid function can be required.

Complete blood count (CBC)

Anemia, swelling, infection, and platelet counts might all be identified with a full blood count.


This examination finds signs of chronic kidney illness and infection in the patient’s pee.

Chemistry Panel

To test for other conditions, such as severe liver and renal damage or disease, it is required to have a full blood panel executed.

What are the treatments for a cat’s hyperthyroidism?

Treatment is essential to restore the usual thyroid function in cats identified with hyperthyroidism and reduce this condition’s symptoms. Luckily, hyperthyroidism might be effectively addressed. Consider Lake Cross Veterinary to treat your pet. The following are some of your treatment options:


Thyroid hormone development may be managed by routine medication. If your feline takes medication, T4 screening is necessary until its thyroid amount is normal. Once maintained, your feline will need T4 screening to verify no medication modifications are needed.


This refers to the actual extraction of the thyroid gland.

Radioiodine Therapy

Radioiodine treatment is a procedure for treating thyroid ailments by irradiating the affected gland with radioactive iodine. Most of the time, this treatment must only be administered once to a cat to remove the condition.

Dietary Supplements

Your cat can eat an iodine-restricted prescription diet regimen. They can not be handled with other foods or treats. Your vet might also consider inspecting renal function and blood pressure.