Hypothyroidism in Cats – Symptoms and Treatment

Like humans and dogs, cats also suffer from hypothyroidism, a disease caused by poor thyroid function. It may be due to different causes but the main problem is the decrease in the secretion of thyroid hormones . These hormones, when they are scarce, cause an imbalance in the different functions of our cat’s organism.

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In this article of YourCatCareguide we explain everything you need to know about hypothyroidism in cats so you can help your cat improve his quality of life.

Feline hypothyroidism

As already mentioned in the introduction, it is a state of thyroid hypofunction that may be due to different causes and that will result in an insufficient amount of thyroid hormones.

The causes are varied but simple to understand. It can produce itself due to a change at any level of the axis Hypothalamus – Pituitary or commonly known as regulatory axis. It can also be caused by a lack of thyroid development and in both cases it is considered as primary hypothyroidism . Here we can also include atrophy of the glands and / or tumors.

In the case of secondary hypothyroidism we have a problem in the synthesis of thyroid hormones due to the existence of some problem in the functioning of the hormones that control the thyroid gland. Thyroid hormones are amino acids with iodine secreted by the gland that produces them, being the only compounds that possess it. So they have essential functions in the body, such as:

  • Regulate homeostasis by giving a good balance of the internal environment
  • Regulate growth and body development
  • They act in the synthesis and degradation of proteins and fats
  • Increase oxygen consumption
  • Form vitamins from carotenes
  • Essential for the nervous system

Symptoms of Hypothyroidism in Cats

The symptoms that our cat can present when suffering from this disease are mainly weight gain and / or obesity without eating disorders . They are the so-called “warning signs” for owners, being very easy to measure and observe. Let’s look at other symptoms that may or may not accompany the disease:

  • Neurological changes such as depression, confusion, stupor, intolerance to move, etc.
  • Dermatological changes (although they are more common in dogs), lack of hair in some areas of the body, a lot of itching of the head and extremities, bad appearance of the hair, hyperpigmentation in some areas of the body, increased edema (such as inflammation), seborrhea.
  • Heart changes such as decreased heart rate or changes in the heart.
  • Neuromuscular signs such as weakness, unwillingness to walk or play, muscular atrophy of the extremities.
  • Reproductive changes such as longer cysts, infertility, testicular atrophy in which the scrotal sac almost disappears, decreased sexual desire.


If your cat shows any of the symptoms described in the previous point we recommend that you visit the vet to evaluate what is happening with your pet. A general screening will be done with a blood test to evaluate the thyroid hormones and the corresponding biochemistry to see if it is accompanied by anything else.

Treatment of hypothyroidism in cats

Once correctly diagnosed the hypothyroidism in our feline we must begin with the treatments, otherwise it could derive in lesions and, in some situations, in the death of the animal.

We should know very well what kind of hypothyroidism we face to adjust the treatment. The supplementation of synthetic hormones sometimes is the way chosen to regulate their levels. They are lifelong treatments, but there are natural ways that can help you not increase the dose in a short time.

We can use Reiki to give you peace of mind and regulate you as a living being. A lot of people forget that these diseases can worsen and, these techniques, are way to delay their early advancement. With homeopathy we can work from another plane. You should seek the basic medicine to make you feel as comfortable as possible with your illness and sometimes you will achieve well-being such that instead of raising the dose of synthetic hormones you will be able to decrease them.

Also read our article on hypothyroidism in dogs for more information on this subject.

This article is purely informative, in YourCatCareguide.com.br we do not have the capacity to prescribe veterinary treatments nor to make any type of diagnosis. We suggest you bring your pet to the veterinarian in case of any type of condition or malaise.

If you would like to read more articles similar to Hypothyroidism in cats – Symptoms and treatment , we recommend you to enter our section of Other health problems .

Emily Harris

Hi Guys, Girls, and Cats:-p I am Emily Harris, and you can see in above pic. She loves me I swear. I saved her from a dumpster a few weeks back.

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