Thyroid function generally refers to the function of the thyroid gland, the birth of the thyroid function is normal later still need to check, it is recommended that parents follow the doctor’s instructions to check.
Newborns 1-3 days after birth for thyroid function test, newborns thyroid function test all normal, means that newborns thyroid hormone secretion is normal, there is no excessive or too little, parents can temporarily rest assured.
However, thyrotropin is not static after birth, thyrotropin is easy to fluctuate after one week, two weeks, and 28 days after birth, so newborns should be checked again for normal thyroid function during routine checkups on the 30th and 42nd days after birth.
Parents are advised to follow the doctor’s instructions on when and how often to check the thyroid function of newborns after birth.