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Ashley Roman, MD

Q&A: How Can I Expect My Hypothyroid Condition to Affect My Pregnancy?

Is my hypothyroid medication safe to take during pregnancy, and how will the disease affect baby?

It’s actually not so common to see pregnant women with hypothyroidism, since women with the untreated condition tend to have high rates of infertility. But if you _are _pregnant (congrats!), hypothyroid medications (like levothyroxine) are actually completely safe and can reduce the complications that come if you leave the disease untreated (such as an increased risk of miscarriage, preterm birth, low birth weight babies and learning disabilities later in baby’s life).

Plus, there’s more good news: Generally, pregnancy won’t worsen your condition, and it’s not likely that you’ll pass it on to baby, since the fetus has its own thyroid gland that kicks in after birth. Women with hypothyroidism may require a higher dosage of medication while pregnant to control the disease, so expect monthly check-ins with your health care provider to make sure that you, your thyroid and baby are all in check.

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