Pregnancy is not recommended during hyperthyroidism medication. Hyperthyroidism is a chronic metabolic disease in which the concentration of thyroid hormones in the blood is increased. Oral antithyroid medication for hyperthyroidism has a cycle of about 2 years and a relapse rate of 50%. Because of the long treatment cycle of hyperthyroidism and the fact that hyperthyroidism occurs mostly in female patients of childbearing age, it is often the case that hyperthyroid patients need to get pregnant. The following points are recommended regarding hyperthyroidism medication and pregnancy: First, pregnancy is not recommended while taking medication; second, it is recommended that hyperthyroidism patients should prepare for pregnancy after their thyroid function is normal and anti-thyroid medication is stopped; third, if a hyperthyroidism patient becomes pregnant while taking medication, it is recommended that anti-thyroid medication be stopped, thyroid function be rechecked, and whether to continue taking medication be decided under the guidance of a doctor according to the thyroid function status; fourth, both during pregnancy and after delivery Regular review of thyroid function is required both during pregnancy and after delivery.