What Are the Symptoms of Hyperthyroidism (Overactive Thyroid) in Dogs?

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Symptoms of hyperthyroidism in dogs:

1. Dogs suffering from hyperthyroidism are mainly manifested as abnormal excitement, goiter, increased drinking water, easy fatigue, heat intolerance, eye congestion, tearing and other symptoms.

2. Palpate under the neck along both sides of the trachea from the pharynx to the chest, and you can feel the enlarged thyroid tumor.

3. Sudden weight gain, excessive obesity, but no increase in appetite.

4. Patients with hyperthyroidism are prone to heart symptoms. Cardiac symptoms are more common symptoms of heart failure, and there are symptoms of arrhythmia.

Causes of hyperthyroidism in dogs:

1. Hyperthyroidism in dogs is caused by thyroid tumors, which are located from the ventral neck to the chest from the pharynx.

2. Thyroid adenoma is usually less than 2cm in diameter and very thin, showing a transparent cyst-like appearance, and some are larger. Among dogs, boxers are the most prone to thyroid adenomas.

3. Clinically, it is characterized by high metabolic rate syndrome, high nerve excitability, and goiter. Common in cats, occasionally in dogs.

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