Pregnant women with low TSH

I believe that most people have never heard of the name TSH, but everyone should know something about the thyroid gland. The thyroid gland secretes thyroid hormone to regulate circulation in the human body, and the thyroid gland is stimulated by the thyroid gland-releasing hormone secreted by the hypothalamus to secrete thyroid hormone. If the thyroid hormone concentration is low, it will have a great impact on pregnant women. Let's take a look at why pregnant women have low TSH.

What to do if TSH is low?

If disease factors cause the thyroid hormone in the body to increase, TSH will also be regulated by negative feedback and decrease. At this time, gestational hyperthyroidism, which is what pregnant women worry about the most, may occur. If hyperthyroidism during pregnancy is not effectively controlled, it may cause maternal heart failure, preeclampsia (a dangerous condition caused by pregnancy-induced hypertension in the late pregnancy), thyroid crisis (sudden worsening of hyperthyroidism symptoms), miscarriage, premature birth, low birth weight and other pregnancy and postpartum diseases, posing a serious threat to the life and health of pregnant women and babies.

However, it should be noted that the diagnosis of hyperthyroidism during pregnancy cannot be based solely on low thyroid-stimulating hormone (TSH). The doctor needs to make a comprehensive judgment based on the pregnant woman's symptoms, medical history, family history, and laboratory tests. Laboratory tests mainly include TSH, free thyroxine T3, T4, total thyroxine T3, T4, etc.; doctors need to comprehensively analyze the blood concentration and change trends of thyroid-stimulating hormone and thyroxine components in the blood to get a correct diagnosis.

Overall, a slight decrease in maternal TSH levels during early pregnancy is likely to be a normal physiological phenomenon. If a pregnant woman shows obvious symptoms of hyperthyroidism accompanied by changes in blood tests, she should pay attention to the possibility of hyperthyroidism during pregnancy and seek professional medical help - this is the significance of regular prenatal examinations. Pregnant women and their families do not need to be overly nervous about low thyroid-stimulating hormone levels, and they must not take medication on their own to avoid causing irreparable damage.