What is the normal TSH level during pregnancy?
The normal level of thyroid-stimulating hormone (TSH) during pregnancy is generally between 0.13 and 3.93 mIU/L, but it varies depending on the stage of pregnancy. The specific details are as follows:
TSH is a hormone secreted by the anterior pituitary gland. In women, normal TSH levels change throughout pregnancy. During week 12 of pregnancy, the normal range is typically 0.13–3.93 mIU/L; from weeks 13 to 27, the normal range is 0.26–3.5 mIU/L; and from week 28 until delivery, the normal range is 0.42–3.8 mIU/L.
It is recommended to evaluate individual cases based on these reference values. If any abnormalities are detected, prompt medical consultation and treatment are advised.