What effect does hyperthyroidism have on the fetus?
Congenital hyperthyroidism is caused by the long-acting thyrotropin in the mother entering the fetus through the placenta. In women with hyperthyroidism, continuous drug therapy will inhibit fetal thyroid function, cause congenital hypothyroidism (dementia), affect the development of fetal central nervous system, and lead to mental retardation. When suffering from hyperthyroidism, if iodine is used for diagnosis and treatment, it can cause acute goiter of the fetus, oppression of the trachea and suffocation, and in severe cases, it can cause stillbirth. In hyperthyroidism, the incidence of low birth weight infants and premature infants increased, and the mortality rate of newborns and perinatal infants increased. If hyperthyroidism patients are not well controlled and treated, it is likely to affect the fetus in the second trimester, so I suggest you be cautious and do a comprehensive physical examination to determine whether the fetus can stay. Hyperthyroidism is common in women of childbearing age. Women with hyperthyroidism should not be pregnant, but some of them are pregnant unintentionally. Hyperthyroidism in pregnancy is not uncommon, and the incidence rate is 0.5% ~ 2%. Hyperthyroid pregnant women are prone to abortion, premature delivery and fetal growth retardation; The incidence of pregnancy-induced hypertension syndrome increased in hyperthyroidism; Hyperthyroid women are prone to uterine inertia during childbirth, which increases the rate of dystocia. The perinatal mortality of hyperthyroidism women increased. Congenital hyperthyroidism is caused by the long-acting thyrotropin in the mother entering the fetus through the placenta. Patients with hyperthyroidism will inhibit fetal thyroid function through continuous drug treatment, cause congenital hypothyroidism, affect the development of fetal central nervous system, and lead to fetal mental retardation.
Why pregnancy can lead to hyperthyroidism?
Hyperthyroidism during pregnancy is because after pregnancy, the placenta will produce a hormone called chorionic gonadotropin. If the hormone level is too high, it can promote the synthesis of thyroid hormone. During pregnancy, there will be some obvious changes in hormones in women, leading to high thyroxine and hyperthyroidism. If you have hyperthyroidism during pregnancy, don't be overly anxious and don't have too much psychological burden. Hyperthyroidism patients can continue their pregnancy, so it is necessary to pay attention to taking antithyroid drugs in time and in moderation for treatment. Any disease during pregnancy has different effects on the fetus, so patients need to use drugs carefully under the guidance of endocrinologists. Try to choose some drugs that have little effect on fetal development. In addition, patients also need to relax and recuperate. The etiology of hyperthyroidism in pregnancy is basically the same as that of hyperthyroidism in non-pregnancy, among which Graves' disease is the most common. Followed by toxic nodular goiter, thyroid autonomic nervous hyperfunction adenoma and so on. In addition, hyperemesis gravidarum, hydatidiform mole, malignant hydatidiform mole and choriocarcinoma can all appear hyperthyroidism.