Hashimoto’s thyroiditis complicated by hyperthyroidism usually does not affect ovulation and can lead to normal pregnancy without much effect on the pregnant woman and the fetus, provided that the condition is under stable control. However, when hyperthyroidism leads to menstrual abnormalities and ovulation disorders, pregnancy is more difficult. If Hashimoto’s thyroiditis with hyperthyroidism is not effectively controlled and the body’s thyroxine level is high, pregnancy during this period may result in adverse outcomes such as miscarriage, fetal malformations, and thyroid crisis. If the condition is controlled and stabilized, the thyroxine level in the body is normal and there are no obvious symptoms, it is possible to have a normal pregnancy. However, when hyperthyroidism leads to abnormal menstruation and ovulation disorders, pregnancy is more difficult. After pregnancy, it is recommended to test thyroxine level regularly, pay attention to diet, avoid exertion, and keep a relaxed mood. Patients with Hashimoto’s thyroiditis are advised to go to the hospital if they need to have children.