Foot Pain is a very real issue post pregnancy.
The surge in relaxin combined with weight gain and edema cause increased stress on the joints of the feet will less passive stability being provided by the ligaments. The result is that the arches drop which causes the foot to elongate and put excessive stress on the plantar fascia which can result in pain and inflammation in the heel, arch and ball of the foot. This over-pronation causes increased stress on the feet, knees, hips and back. It is important to treat over-pronation for pain relief, but also to prevent other foot conditions from developing such as Plantar Fasciitis, Heel Spurs, Metatarsalgia, Post-Tib Tendonitis and/or Bunions. Unfortunately, your body does not automatically go back to its normal neutral position and many women find that the overstretching in the ligaments and collapse of the arch lead to them increasing a shoe size.