Thyroid stimulating hormone in pregnant women is lower than normal

There are two common possibilities, one is hyperthyroidism, and the other is pregnancy hyperthyroidism syndrome. If it is hyperthyroidism, then medication is needed, please take medication under the guidance of a specialist. Pregnancy hyperthyroidism syndrome is not treated with medication. Thyroid stimulating hormone is low, triiodothyronine, tetraiodothyronine is normal, and generally there is no special problem clinically. You can continue to observe. Thyroid stimulating hormone levels may be lower than normal during pregnancy. However, if triiodothyronine and tetraiodothyronine are abnormally elevated, or only triiodothyronine is elevated, then hyperthyroidism should be considered. Please see a specialist in time and take medication under the guidance of a doctor.