The main reason for having children with hyperthyroidism is the interaction between pregnancy and hyperthyroidism. Many women with normal pregnancies have hypermetabolic syndromes that are similar to hyperthyroidism, but it is important to distinguish between them. Severe hyperthyroidism can lead to preterm labor, miscarriage, toxemia of pregnancy, and stillbirth, and pregnancy itself can worsen the cardiac burden of the patient with hyperthyroidism, so the two interact with each other, and the overall effect is detrimental to the child and the pregnant woman. Therefore, if a patient with hyperthyroidism needs to become pregnant, i.e., to have a baby, the hyperthyroidism needs to be treated and controlled in advance in order to avoid the adverse effects of severe hyperthyroidism on the pregnant woman, which itself can lead to a much higher probability of perinatal adverse events.