Thyroid disorders are among the most common. Among endocrine diseases they occupy second place after diabetes. The frequency of thyroid diseases in recent years has been steadily increasing, due to many reasons, including environmental degradation, rising levels of radiation. Of particular concern is the lack of iodine. Great difficulties in the treatment of thyroid diseases occur due to the fact that in the early stages of this disease is virtually no concern to the patient, and access to a doctor, usually occurs at the stage visible to the eye enlarged thyroid gland, it is too late.