Neonatal hypothyroidism is also known as congenital hypothyroidism or congenital hypothyroidism, most of them are caused by congenital factors, and a small number of them may be caused by the use of antithyroid drugs by the mother during pregnancy, and the treatment is mainly based on drugs. Newborns with hypothyroidism first need to undergo thyroid replacement therapy to normalize thyroid function, which can be done under the guidance of a doctor by applying levothyroxine sodium tablets or dry thyroid tablets. In addition, regular outpatient follow-up of thyroid function is needed, and the dose of the medication can be adjusted under the guidance of the doctor if necessary to maintain thyroid function. The above drugs are taken under the guidance of a doctor, not to be used on their own, the use of medication, if tachycardia, excessive sweating, emaciation, abdominal pain and diarrhea, etc., you should consult a doctor in a timely manner, in accordance with the doctor’s instructions to deal with.