Many babies are born with flat feet, and 80-90% of children disappear by age 6. Why do you have flat feet? This is because the child’s bones and joints are flexible, which causes flat feet when he stands. In addition, babies have fat pads on the inside of their feet that hold the arch back. If you lift the child’s foot up, you can see the arch, but when the child stands, the arch disappears again. For children with undeveloped arches, corrective shoes not only do not help the child’s arches develop, they can cause more serious problems than flat feet. If the child feels stiff or painful feet, this is the time to call an orthopedic surgeon.