Maternal Hypothyroidism and Pregnancy

Hypothyroidism during pregnancy poses a challenge to the treating clinician. The diagnosis is made by a TSH that is greater than normal, and during pregnancy, this situation deserves therapy. Research over the years has shown that maternal thyroid hormones are very important in pregnancy. Importantly, emerging data seems to suggest that thyroid hormones are important for fetal brain development, especially during early pregnancy. This article will focus on the clinical approach to hypothyroidism in a pregnant woman.