Hypothyroidism and pregnancy
Epidemiology and etiology. Ovulatory dysfunction is common in hypothyroidism; consequently, hypothyroid women have difficulty conceiving.16 Overall, the prevalence of hypothyroidism during pregnancy is *2.5%, the majority being subclinical cases.50 Transiently high serum TSH levels in the firsttrimester can also occur, however, probably related to iodine deficiency.50 The most common cause of hypothyroidism in women of reproductive age, in the absence of iodine deficiency, is AITD. A history of past total or subtotal