The normal value of thyroid stimulating hormone in the human body is between 0.3 mU/L and 5 mU/L. Thyroid stimulating hormone has a role in promoting the growth of the thyroid gland and is the main substance that regulates the synthesis and secretion of thyroid hormones. When there is an increase in thyroid stimulating hormone values, it is usually due to primary hypothyroidism, recovery from subacute thyroiditis, etc. In the case of decreased thyroid hormone, it is usually due to hyperthyroidism or pituitary hypothyroidism. Whether the thyroid hormone is elevated or decreased, it will affect the body to a certain extent, but the specific degree of impact needs to be determined through comprehensive thyroid hormone tests to confirm the diagnosis and then take active and effective treatment. Sometimes, not paying attention to diet, high psychological stress and excessive emotional stress can also lead to physiological elevation of thyroid hormone levels, which do not require special treatment, as long as you pay more attention to your lifestyle habits. When thyroid stimulating hormone abnormalities occur, it is important to go to a regular hospital for treatment.