Overview

Feline hyperthyroidism is a common condition in older cats, characterized by an overproduction of thyroid hormones by the thyroid glands. This condition can lead to a range of health issues and requires prompt attention to manage effectively.

Causes

The most common cause of hyperthyroidism in cats is a benign tumor of the thyroid gland called a thyroid adenoma. Less frequently, it can be caused by a malignant thyroid tumor or inflammation of the thyroid gland.

Symptoms

Cats with hyperthyroidism may exhibit a variety of symptoms, including:

  • Increased appetite but weight loss
  • Increased thirst and urination
  • Vomiting or diarrhea
  • Increased activity or restlessness
  • Excessive grooming or a poor coat condition
  • Rapid breathing or heart rate
  • Enlarged thyroid glands, which may be palpable as lumps in the neck area

Diagnosis

Diagnosis of hyperthyroidism typically involves:

  • Physical Examination: Your veterinarian will check for symptoms and palpate the thyroid glands.
  • Blood Tests: Elevated levels of thyroid hormones (T4) in the blood confirm the diagnosis.
  • Ultrasound or X-rays: These may be used to assess the size and condition of the thyroid glands and to rule out other conditions.

Treatment

Treatment options for feline hyperthyroidism include:

  • Medication: Anti-thyroid drugs such as methimazole help to reduce hormone levels.
  • Surgery: Surgical removal of the affected thyroid gland(s) is an option for some cats.
  • Radioactive Iodine Therapy: This treatment targets and destroys overactive thyroid tissue with minimal effects on surrounding tissues.
  • Dietary Management: Special low-iodine diets can help manage the condition in some cases.

Prognosis

With appropriate treatment, many cats with hyperthyroidism can lead happy, healthy lives. Regular follow-up care and monitoring are crucial to ensure the condition is well-managed and to address any potential side effects from treatment.

When to Seek Help

If you notice any symptoms of hyperthyroidism or if your cat’s health changes, it’s important to seek veterinary care promptly. Early diagnosis and treatment can significantly improve your cat’s quality of life.

Contact Us

For more information or to schedule a visit, please contact Mission Veterinary Clinic. We are an urgent care facility located at:

Mission Veterinary Clinic
16915 San Fernando Mission Blvd Granada Hills, CA 91344
Phone: 818-363-8143

We operate on a walk-in basis and do not take appointments. Our dedicated team is available to provide immediate care for your feline companion.