Your New Foundation: The Complete Guide to Foot Changes After Pregnancy (2026) — Why Your Feet Grew, How They'll Change, and the Best Shoes for Your Postpartum Body

Relaxin peaks in the first trimester and again near the end of the third trimester. It destabilizes the collagen structure in your ligaments, including the plantar fascia and the spring ligament that supports your arch. A 2020 study in Journal of Women's Health Physical Therapy found that foot stiffness decreases by nearly 30% during pregnancy — meaning your arch literally flattens under load because the supporting ligaments have softened.

Average gestational weight gain in a healthy pregnancy is 25–35 pounds. Every pound of body weight places roughly 3–4 pounds of force through your feet. That's an extra 100+ pounds of pressure on your arches with every step. When you combine that load with relaxed ligaments, your foot skeleton has no choice but to splay and elongate.

Many women retain fluid in their feet and ankles, especially in the third trimester. While the swelling itself resolves within a few weeks of delivery, the tissue expansion can permanently stretch the soft tissue envelope of your foot. Even after the puffiness goes down, you may find that your foot no longer fits comfortably in a narrow-width shoe.

For the majority of women, no. The arch drop that occurs during pregnancy typically causes a permanent increase in foot length of half to a full shoe size. Some women may retain their original width if swelling was the main driver, but the length change usually sticks. A 2013 study from the University of Iowa confirmed that these structural changes persist at least 5 months postpartum, and most clinicians treat them as permanent.

Most of the ligamentous changes stabilize between 6 and 12 months postpartum. This is when the relaxin hormone has fully cleared from your system (it drops quickly after delivery) and your ligaments regain their normal stiffness. However, the position of your bones and the shape of your arch are largely set by this point. If you want to influence your foot structure, the most effective window is the first 6 months after birth.

You cannot prevent the systemic action of relaxin — that is a hormonal process. However, you can minimize the mechanical consequence by wearing supportive footwear (avoiding flat, flexible shoes) and using arch supports or orthotics from the second trimester onward. The less your arch is allowed to drop under the load of pregnancy, the less permanent the elongation. Early intervention with a good walking shoe and a metatarsal pad can reduce the final arch drop by up to 20–30%.

For most women dealing with foot changes after pregnancy, the best shoe is one with a stiff heel counter, a wide toe box, a removable insole for orthotics, and moderate cushioning. Our top current picks include the Hoka Clifton 9 (Wide), the Brooks Addiction Walker 2, and the New Balance 928v3 for maximum support. If you prefer a walking shoe with a more natural shape, the Altra Torin 7 (Wide) is a strong option with zero heel drop.

During pregnancy, the hormone relaxin keeps your ligaments loose, which can mask pain. After delivery, relaxin levels plummet, and your ligaments begin to stiffen back up — but they stiffen around the new, elongated position of your bones. That shift causes tension on the plantar fascia and the Achilles tendon. Additionally, carrying and caring for a newborn adds new physical demands (carrying weight, walking on hard floors) that can trigger symptoms in a foot that has structurally changed.