Thyroid hormone testing

The thyroid is an endocrine gland responsible for producing various hormones and regulating metabolism. Just like in humans, the thyroid is a vital organ for animals; when its function is impaired, the pet’s well-being and quality of life deteriorate significantly.

When the thyroid produces too few hormones, hypothyroidism develops. This is the most common endocrine disease in dogs. The progression of hypothyroidism is slow, so symptoms appear gradually:

• Hair loss (rough, dull coat);
• Alopecia (patchy balding);
• Seborrhea (excessively flaky skin);
• Skin hyperpigmentation (especially in the armpit and groin areas);
• Changes in nose pigment;
• Lethargy (excessive sleepiness), calmness, or indifference;
• Obesity;
• Intolerance to cold.

Hypothyroidism mostly affects large-breed dogs and is very rarely found in cats.

When the thyroid produces an excess of hormones, hyperthyroidism develops, which manifests through the following symptoms:

• Weight loss;
• Increased thirst;
• Diarrhea;
• Difficulty swallowing;
• Heart rhythm disturbances;
• Exercise intolerance;
• Shortness of breath.

Thyroid disorders develop slowly and symptoms emerge progressively. Therefore, it is the duty of a caring owner to consult a veterinarian upon noticing even a few of the symptoms listed above. The doctor will perform the necessary thyroid blood tests and prescribe the most effective treatment so that your four-legged friend can continue to enjoy a high-quality life!