A child with high thyroid hormone after pregnancy will not become stupid and will not affect the child’s intelligence because of high thyroid hormone, but high thyroid hormone may induce other pregnancy complications. If elevated thyroid hormone occurs during pregnancy, it may be due to metabolic factors and may not require special treatment if the symptoms are mild. It may also be due to the presence of a thyroid disorder, such as hyperthyroidism, which can be treated with antithyroid medication. If the condition is more serious, surgical treatment can be taken in the middle of pregnancy to control the condition in a more ideal situation, which will have less effect on the fetus and need not worry too much. However, when a pregnant woman develops elevated thyroid stimulating hormone, it may lead to insufficient synthesis of thyroxine in the fetus, and in severe cases, it will affect the development of the central nervous system of the fetus, especially the brain, which may lead to mental retardation of the fetus. Therefore, when abnormalities of thyroid hormone or thyrotropin occur, you should go to the endocrinology department of the hospital for examination in a timely manner. At the same time to maintain a relaxed mood, do not eat spicy and stimulating food, can eat some walnuts in moderation, the fetal brain development has some help.