(1) Premature infants learn to walk and stand. Because children's legs are not strong enough, when walking and standing, their feet naturally separate, which widens the sole area, thus standing firm and preventing falling, thus forming a posture of naturally separating their feet.
2 wear leather shoes too early. Children should wear leather shoes when they learn to walk, especially hard shoes. Because children's feet are soft and their ankles are weak, there is often a phenomenon that shoes can't move. So, over time, their gait is distorted.
③ Calcium deficiency in the body. When the calcium content in children's bones is low, the foot bones are amorphous, and the bilateral medullary joints are easy to separate outward due to gravity when walking and standing; Thus forming an "external splayed foot".
I hope my answer can help you! ! !