It is not advisable for women with hyperthyroidism to get pregnant before they are cured. This is because pregnancy itself is bound to increase the physical and mental burden of the patient and affect recovery, and is also likely to cause miscarriage, premature birth and stillbirth; at the same time, if there is a slight deviation in the treatment of hyperthyroidism, it will also cause fetal hyperthyroidism, fetal goiter and even fetal hypothyroidism, which will affect the brain development of the fetus. Therefore, women with hyperthyroidism should not rush to get pregnant, but should first actively treat hyperthyroidism and then consider pregnancy after it is cured. If surgery is used to treat hyperthyroidism, pregnancy can be considered three months after surgery when there is no recurrence of the disease. If radioactive iodine 131 treatment is used, pregnancy can be considered after six months of treatment. However, it takes at least 2 years to be cured with anti-thyroid medication, and pregnancy can be considered if there is no sign of recurrence for 6 months after stopping the medication. If a hyperthyroid woman is pregnant before her hyperthyroidism is cured, abortion is generally recommended for pregnant women with hyperthyroidism, considering that hyperthyroidism is detrimental to both the woman and the fetus. If a woman with hyperthyroidism is already pregnant and for some reason does not want to terminate the pregnancy, she must be seen regularly and under the guidance of an endocrinologist and an obstetrician-gynecologist for treatment of hyperthyroidism and health care during pregnancy. It is best to measure thyroid hormone levels such as FT3, FT4, TT3, and TT4 once a month.