Pregnancy makes everything bigger, including your feet. But unlike with losing baby weight, you might not be able to drop down to your pre-pregnancy shoe size since the change, for some women, is permanent, according to a new study.
It's common knowledge that feet swell temporarily from water retention during pregnancy. But the permanent growth has to do with fallen arches, according to researchers at The University of Iowa whose study—which was published in the American Journal of Physical Medicine and Rehabilitation—who measured the arch height and foot length of 49 women during pregnancy and five months after they'd given birth. They found that 60 to 70 percent of the women had longer feet and shorter arches following delivery.