Women with hyperthyroidism can get pregnant if their thyroid function is stable and controlled, but it is best to treat the hyperthyroidism completely and achieve clinical cure before getting pregnant. For hyperthyroidism patients, it is important to keep their thyroid function as stable as possible before pregnancy, because after pregnancy, pregnancy reactions such as nausea and vomiting tend to occur due to elevated HCG levels, which can aggravate the symptoms of hyperthyroidism and even induce hyperthyroid crisis. In addition, the damage to the white blood cells and liver function during hyperthyroidism may affect the fetus, causing premature birth, miscarriage and fetal abnormalities, and the drugs used to treat hyperthyroidism may also cause problems in this area. In order to ensure the health of the mother and fetus during pregnancy, it is important to control and stabilize the hyperthyroidism as much as possible before the pregnancy, and if the pregnancy occurs with poorly controlled hyperthyroidism, medication should be administered as soon as possible to control and stabilize the thyroid function, and attention should be paid to assessing the condition of the fetus to determine whether to keep the fetus.