What complication may arise from untreated hypothyroidism during pregnancy?

Untreated hypothyroidism during pregnancy can lead to serious complications, the most significant being an increased risk of miscarriage and developmental issues in the fetus. Thyroid hormones are crucial for various developmental processes during pregnancy, particularly in the first trimester when fetal thyroid function begins. Inadequate levels of these hormones can impair fetal brain development, leading to cognitive delays and deficits later in life.

Additionally, untreated hypothyroidism is associated with an increased risk of gestational complications such as anemia, preeclampsia, and placental abruption, further underscoring the importance of thyroid hormone levels in ensuring both maternal and fetal health. Monitoring and managing thyroid levels in pregnant individuals is essential to minimize these risks and promote healthy outcomes for both the mother and the child.