TSH is thyroid stimulating hormone, and the normal value of thyroid stimulating hormone in newborns is less than 10mU/L. The thyroid stimulating hormone is mainly secreted by the pituitary gland. Neonatal thyroid stimulating hormone is mainly secreted by the pituitary gland, thyroid stimulating hormone can promote the thyroid gland secretion of thyroid hormone, the secretion of thyroid hormone has to maintain the normal metabolism of the human body, and promote the role of growth and development. The normal value of thyroid stimulating hormone in newborns is less than 10mU/L. If it is more than 10mU/L, it is necessary to be alert to the presence of congenital hypothyroidism. It is recommended that thyroid hormone levels be measured within 72 hours of birth to determine the value of thyroid stimulating hormone. For newborns with elevated levels of thyroid stimulating hormone, it is recommended that the test be repeated one month after birth, and if hypothyroidism is confirmed, standardized treatment is required under the guidance of a doctor.