Hashimoto’s thyroiditis, also known as chronic lymphocytic thyroiditis, is an autoimmune disease, and having Hashimoto’s thyroiditis can have an effect on pregnancy. In the early stages of Hashimoto’s thyroiditis, if the combined hyperthyroidism functionally shows an increase in T3 and T4 and a decrease in TSH, this condition requires medication in order to get pregnant. To bring the thyroid gland to normal standards in utero, certain drugs are teratogenic to the pregnant fetus, so choose drugs that have a low impact. In addition, if Hashimoto’s thyroiditis is combined with hypothyroidism, which has a great impact on fetal pregnancy, you should take alternative oral medications as early as possible, including eugenol, which is commonly used in clinical practice, to prevent the effects of hypothyroidism on pregnant women.