• Learn about thyroid issues in dogs.dog image by Michal Tudek from Fotolia.com
  
  The thyroid gland plays an important role in many biological functions. Its biggest responsibility is the body's metabolic regulation. Thyroid problems in dogs may be caused by other medical conditions or may be inherited. In some cases, diagnosis can be difficult. To prevent severe complications, early diagnosis and treatment are essential.
  
  

Hypothyroidism

• Hypothyroidism refers to the condition in which the thyroid gland does not produce enough hormones. This will cause your dog's body to slow down, which means his body will not metabolize as efficiently to produce energy and he will be lethargic and tired. Your veterinarian may diagnose the condition by measuring thyroid hormone levels. Treatment for hypothyroidism involves replacement therapy using a synthetic version of thyroid hormone. Blood tests must also be administered over a period of time to monitor thyroid function.
  
  

Hyperthyroidism

• Hyperthyroidism, on the other hand, refers to the condition in which your dog's thyroid gland is producing too much thyroid hormone. This causes your dog's metabolic rate to have an abnormal boost. Your dog may go to the bathroom more frequently, be nervous or twitchy, experience weight loss, act restless and be intolerant of heat. Your veterinarian will make a diagnosis by measuring your dog's thyroid levels and hormone production. Treatment includes surgically removing the thyroid.
  
  

Symptoms of Thyroid Problems

• A dog that is suffering from thyroid problems will generally show an acute lack of energy and have no interest in his normal activities. The dog is lethargic and will prefer to be alone. He will usually just rest in the corner of a room. There may be an unexplained increase in your dog's weight as your dog's metabolism is not maintained properly. The dog will also show signs of fatigue. A significant decrease in your dog's metabolic rate will lead to a poor coat. The malfunctioning of your dog's thyroid gland can also significantly affect his skin. It will feel cold and will look pale. The sebaceous glands of the skin that keep the skin warm will also work inefficiently. Finally, a dog suffering from thyroid problems will feel exhausted, resulting in longer and more frequent sleeping.