Does high thyroid hormone affect the fetus during pregnancy

If thyroid hormone or thyronine is increased, it indicates hyperthyroidism. If thyroid stimulating hormone is too high, it indicates hypothyroidism. Whether it is hyperthyroidism or hypothyroidism, it will affect the fetus, which can lead to abortion, premature birth, fetal dysplasia, congenital hypothyroidism, mental retardation, etc. Therefore, thyroid function testing should be carried out during pregnancy preparation. It is best to control thyroid function before pregnancy. If pregnant, thyroid function should also be monitored regularly. If there is abnormal thyroid function, symptomatic treatment is required as appropriate.