A lay term for pes planus, a deformity of the foot in which its arch sinks down, causing the inner edge of the foot to rest upon the ground.
Causes
The disorder may develop in infancy or occur in adult life, usually resulting from a combination of obesity and/or an occupation involving long periods of standing.
Symptoms
Often none, but there may be pain along the instep and beneath the outer ankle. The foot is stiff and broad, walking is tiresome, and the toes turn out.
Treatment
A change of occupation may be necessary, to one which allows sitting. In early cases the leg muscles may be strengthened by tiptoe exercises performed for ten minutes night and morning. A pad to support the arch may have to be worn inside the shoe. Rarely, children may benefit from surgery.