A baby born from a hyperthyroid pregnancy may be normal or may have fetal abnormalities. The exact condition of the baby born from a hyperthyroidism pregnancy is related to the severity of the hyperthyroidism at the time of pregnancy, and the more severe the hyperthyroidism, the greater the impact on the baby. If the hyperthyroidism get timely treatment to control the symptoms have improved, may not affect the normal development of the fetus, but if the hyperthyroidism did not get timely control and treatment, may affect the growth and development of the fetus, and even miscarriages, premature birth, etc., and taking part of the hyperthyroidism during the treatment of the medication will be through the placenta barrier affects the fetus resulting in fetal malformations. If you have mild hyperthyroidism, you can consider continuing the pregnancy with regular checkups. If you have severe hyperthyroidism, it is recommended that you terminate the pregnancy and consider preparing for pregnancy after the hyperthyroidism treatment is complete. Once you are pregnant and find that you have hyperthyroidism, you need to go to the hospital in time to see a professional doctor to determine further treatment options.