Elevated thyroid hormones may cause embryonic arrest.
Mildly elevated thyroid hormones do not cause significant embryonic developmental abnormalities and can be medically intervened in order to avoid affecting fetal thyroid function and the development of hypothyroidism after birth.
If the level of thyroid hormone is significantly higher than normal, it will adversely affect the embryo and even lead to the cessation of embryonic development or even miscarriage or repeated miscarriage.
Thyroxin level check should be perfected before pregnancy, if the thyroid hormone level is elevated before pregnancy, timely treatment should be carried out to control, in the normal range before preparing for pregnancy, after pregnancy should be regularly recheck the thyroid hormone level, if there is an elevation, the dose of medication should be adjusted in a timely manner.