Pregnancy and Your Thyroid

When you're pregnant, your body is constantly evolving—your belly is growing, your hormones are changing, and sometimes your thyroid goes haywire. Because of these changes, pregnancy can trigger a thyroid problem. You may be more susceptible to a thyroid condition during pregnancy for genetic reasons, from pre-existing hypothyroidism that hasn't been treated properly, or from previous damage or removal of the thyroid to treat hyperthyroidism.