Hyperthyroidism in cats: How to recognize and treat it
Is your cat suddenly hyperactive, eating a lot, but still losing weight? These symptoms could indicate hyperthyroidism – one of the most common hormonal disorders in cats. Older animals are particularly affected, but the condition often goes unnoticed for a long time.
In this article you will learn everything about hyperthyroidism in cats : from the first signs and causes to the best treatment options .
What is hyperthyroidism in cats?
The thyroid is a small organ located in your cat's neck and is responsible for producing important hormones. These hormones regulate metabolism and ensure your cat stays fit and healthy.
In hyperthyroidism , the thyroid produces too many hormones. This disrupts metabolism and leads to various health problems.
Signs of hyperthyroidism in cats
How do you know if your cat has hyperthyroidism? The symptoms are often subtle and can easily be overlooked. Here are the main signs :
- Weight loss: Despite increased appetite, your cat is losing weight.
- Cravings: Your cat eats more than usual, but never seems to get full.
- Hyperactivity: Your cat is restless, nervous and moves more than usual.
- Increased meowing: Many cats become louder and demand more attention.
- Coat changes: The coat appears dull, shaggy or even falls out.
- Vomiting and diarrhea: Gastrointestinal problems are also common.
- Increased thirst and urination: Your cat is drinking much more than usual.
Tip: If you notice one or more of these symptoms in your cat, you should definitely see your veterinarian.
Causes of hyperthyroidism in cats
The exact causes of hyperthyroidism in cats are not fully understood. However, there are several factors that may play a role:
- Benign thyroid tumors: In most cases, hyperfunction is caused by an enlargement of the thyroid gland (adenoma).
- Age: The disease occurs mainly in cats from the age of 8.
- Environmental factors: Chemicals or certain feeds could affect the thyroid.
- Genetic predisposition: Some cat breeds seem to be more susceptible, e.g. Siamese cats.
Diagnosis of hyperthyroidism in cats
The veterinarian makes the diagnosis through various examinations:
- Clinical examination: Palpation of the thyroid and questioning of symptoms.
- Blood test: An elevated T4 (thyroid hormone) level in the blood indicates the disease.
- Ultrasound or scintigraphy: Imaging procedures show the size of the thyroid and possible tumors.
Good to know: Early diagnosis is important to avoid long-term consequences such as heart or kidney damage.
Treatment of hyperthyroidism in cats
The good news: Hyperthyroidism in cats is easily treatable! Here are the most common methods:
1. Drug therapy
- Tablets or drops: Medications reduce the thyroid hormone production.
- Lifelong treatment: The medication must be administered daily.
2. Special diet
- A low-iodine diet can help regulate thyroid hormone production.
- Works best for cats that eat this food exclusively.
3. Radioiodine therapy
- A single treatment with radioactive iodine destroys the overactive thyroid tissue.
- Very effective, but often only available in specialty clinics.
4. Surgical removal of the thyroid
- In the case of benign tumors, the affected thyroid can be removed.
- The operation carries risks, but is a long-term solution.
Tip: Discuss with your veterinarian which method is best for your cat.
Living with a cat with thyroid disease
With the right treatment, your cat can live a happy and long life despite hyperthyroidism. Here are a few tips:
- Regular check-ups: Have your cat’s hormone levels checked regularly by your veterinarian.
- Give medication consistently: Make sure your cat takes its medication regularly.
- Healthy diet: A balanced, low-iodine diet supports the thyroid.
- Avoid stress: A quiet environment helps your cat relax.
Frequently asked questions about hyperthyroidism in cats
“Can the disease be cured?”
Radioiodine therapy and surgery offer long-term solutions. Medications must be administered lifelong.
“How much does treatment cost?”
Medications cost approximately 20–40 euros per month. Radioiodine therapy can cost several hundred euros, but is often a one-time treatment.
“Can hyperthyroidism cause other diseases?”
Yes, if left untreated it can lead to heart problems, high blood pressure and kidney damage.
Conclusion: Recognize hyperthyroidism in cats and act correctly
Hyperthyroidism in cats is a serious but treatable condition. It's important to recognize the signs early and have your cat examined by a veterinarian.
The most important points at a glance:
- Watch for symptoms such as weight loss, cravings, and hyperactivity.
- Early diagnosis prevents subsequent damage.
- Treatment options include medication, special diets, radioiodine therapy and surgery.
- With the right treatment, your cat can live a long and happy life.
Listen to your cat's signals – and make sure she always gets the best support! 🐾
