How does high TSH affect fertility?
Menstrual irregularity is connected with both hyperthyroidism and hypothyroidism, and rates of infertility in women with Hashimoto thyroiditis and Graves disease have been reported to exceed 50%.
How is TSH related to pregnancy?
During pregnancy, thyroid hormone plays a crucial function in the brain development of the infant. Overt hypothyroidism (high TSH levels and low thyroid hormone levels) in the mother, especially early in pregnancy, might clearly impact the baby’s brain development or create other pregnancy complications.