Newborns thyroid hormone need to complete a full set of thyroid function tests, to clarify the peripheral or central, if necessary, oral levothyroxine sodium tablets. If the thyroid hormone is elevated in newborns, it is necessary to complete a full set of thyroid function tests, combined with the FT4 level to determine the thyroid function, under the guidance of a professional doctor, targeted treatment, if necessary, oral levothyroxine sodium tablets, the specific use of the dosage as prescribed by the doctor. After starting to take the drug, you need to review once every 2 weeks, and then you can gradually extend the review time once every 1-3 months, pay attention to follow up, and after recovering to normal, you still need to combine the age of the child, adjust the use of drugs under the guidance of the doctor.