If your child continues to have flat feet after the age of 10, his or her doctor will perform a physical examination to determine what type of flat feet your child has. The doctor will have your child stand on the whole foot (in the “loaded” position) and on the toes. In addition, the doctor will check the shape of the foot when your child gets off the foot (called the “unloaded” position) as well as how far your child can bend their foot at the ankle.