thyroid problems post-pregnancy

Photo: PeopleImages/istock

5 of 6
Your thyroid acts up

The act of growing a tiny human forever changes your immune system in ways that aren't fully understood, says Curry. One example of those lingering effects: five to 10 percent of women experience temporary thyroid problems; the gland may become underactive (hypothyroid) or overactive (hyperthyroid). It's easy for some of these symptoms (fatigue, weight changes, mood problems) to go missed since they sound an awful like the demands of caring for a newborn. Happily, most women's thyroids will return to normal in about a year, and your doc can prescribe thyroid medication, if necessary.