Taking hyperthyroidism medication for one year, whether pregnancy can be continued depends mainly on the type of medication used and the physical control; the application of propylthiouracil, the hyperthyroidism itself is well controlled, the dosage of the medication is small, generally can be continued; the application of methimazole, the hyperthyroidism is poorly controlled, the dosage of the medication is large, it is not recommended to continue the pregnancy. 1. Propylthiouracil does not pass through the placenta, if the dosage of the drug is relatively small during this period, it does not have much effect on the fetus, so you can continue the pregnancy, and you need to regularly review the thyroid function and gynecological ultrasound. 2. The application of methimazole to control hyperthyroidism, or its own hyperthyroidism control is not stable, the dosage of drugs on the large side, easy to cause fetal development deformities, is not recommended to continue the pregnancy, need to be under the guidance of the doctor’s comprehensive judgment and decision. Patients with hyperthyroidism should be pregnant under the guidance of a doctor.