Euthyroidism: Symptoms and Treatment

Euthyroidism is a condition of the thyroid gland, in which the work of the organ is disturbed, despite the fact that the level of thyroid and thyroid-stimulating hormones is normal. This term is usually used by clinicians to characterize the results of the analyzes obtained. But, despite the fact that clinical euthyroidism is a physiological condition, serious diseases such as endemic goiter or autoimmune thyroiditis can begin to develop on its background.

These pathologies have a vivid clinical picture, the thyroid gland increases in size (the degree of increase directly depends on the severity of the disease). When euthyroidism, as in hyperthyroidism and hypothyroidism, the patient is noted diffuse gland change, as well as the formation of specific nodes (nodular goiter). If several such pathological formations are formed simultaneously, then in this case we are talking about a multinodular goiter of euthyroidism.


The causes of the progression of euthyroidism are quite diverse. The thing is that the organs of the endocrine system are very sensitive to various endogenous and exogenous factors. Especially vulnerable is the thyroid gland. Euthyroidism is referred to by many clinicians as a borderline condition.

The ratio of thyroid hormones can change at any time — the level may decrease and increase, resulting in the progression of pathologies (for example, autoimmune thyroiditis).

Causes of euthyroidism:

  • Inadequate concentration of iodine in the body. This cause is the main one in the progression of thyroid pathologies — autoimmune thyroiditis, hyperthyroidism, hypothyroidism, endemic goiter and others
  • Adverse environment
  • heredity;
  • thyroid pathologies, which are accompanied by severe inflammation (in which case the symptoms of the disease will be very pronounced)
  • stress;
  • increased physical and psychological stress
  • taking medications that depress the functioning of the thyroid gland
  • getting into the human body of some active substances — arsenic, strontium, cobalt and others.


Symptoms of euthyroidism are directly related to manifestations of the underlying ailment. The very first symptom that arises in a person is nervousness. Further, fatigue is associated with increased fatigue. Later, such symptoms are added:

  1. discomfort in the neck area
  2. a characteristic symptom of thyroid pathologies is the feeling of a lump in the throat;
  3. a sense of weakness;
  4. there may be a headache;
  5. drowsiness;
  6. increase in the size of the thyroid gland. This symptom can indicate not only not euthyroidism, but also on more serious pathologies of the gland
  7. a person very quickly gaining weight, while continuing to observe his usual diet;
  8. change the voice. This symptom appears against the background of an increase in the size of the thyroid gland. In the future, the appearance of a dry cough.

Separately, it is worth highlighting the most common form of euthyroidism — nodal goiter. This condition is characterized by the appearance on the gland of pathological outgrowths. Clinicians distinguish 5 varieties of nodular goiter:

  • endemic goiter that progresses due to insufficient concentration of iodine in the body
  • nodular goiter, which is characterized by the binding of nodules;
  • goiter with a single node
  • a goiter with numerous nodules


  1. 1 degree. At this stage of development, the thyroid gland is not enlarged and its ability is not palpated;
  2. 2 degree. The iron can be palpated;
  3. 3 degree. The shape of the gland can be seen when swallowing;
  4. 4 degree. The goiter is localized in a significant area of ​​the neck;
  5. 5 degree. The gland is enlarged so much that it begins to press on the surrounding tissues and organs.

In the case of progression of nodular goiter, the overall clinical picture is complemented by the following symptoms:

  • discomfort in the sternum;
  • tachycardia
  • Arrhythmia.


Treatment of euthyroidism can be carried out only after the doctor conducts ultrasound of the thyroid gland, and also sends the patient to the blood test. Depending on the results, euthyroidism may not require specific treatment. These are the cases when the gland is not enlarged and the hormonal background is stable. It is recommended to visit the endocrinologist regularly.

If a patient is concerned about certain symptoms described above, then the doctor resorts to medical treatment, the main purpose of which is to restore the functioning of the gland, and also to normalize its size.

Treatment is done with:

  1. course of levothyroxine;
  2. preparations, the active ingredient of which is iodine

Sometimes iodine preparations and levothyroxine may be prescribed simultaneously. In the case of a rapid increase in the thyroid gland, it is shown to perform surgical treatment. Also, the operation is prescribed for nodular goiter with a large number of nodules.