Flat feet, known medically as Pes Planus, are commonly seen on examining children and some adults. 

Though essentially a normal finding, and generally nothing to be concerned about, they can cause pain on walking or running and it is very common for us to find that children and young adults who complain of sore legs, hips or backs whilst exercising have flat feet.  This simple article is intended to help you understand flat feet and to treat yourself.  If you have symptoms that do not improve quickly, please see your doctor.