Pregnancy found that the thyroid hormone is too high, may be a pregnancy transient hyperthyroidism, may also be Graves disease, need to clarify the cause of the disease, such as pregnancy transient hyperthyroidism, no special treatment. 1. Transient hyperthyroidism of pregnancy: human chorionic gonadotropin (hCG) rises after pregnancy. hCG is structurally similar to thyroid stimulating hormone and can stimulate the TSH receptors on the surface of the thyroid gland, which promotes the increased secretion of thyroid hormone. As the month of pregnancy increases, the level of hCG gradually decreases, and the thyroid function can return to normal on its own. 2. Pregnancy combined with Graves’ disease: If the thyroid hormone is too high, TSH is lowered, and the thyroid hormone receptor antibody is positive, then it is necessary to consider the combination of Graves’ disease, and need to take antithyroid medication under the guidance of the doctor. If you find out that your thyroid hormone is too high during pregnancy, it is recommended that you consult a doctor in time to clarify the cause and treatment under the guidance of the doctor.