A condition in which the soles of the feet lie flat on the ground instead of being arched as usual.
Absence of the arching of the foot, so that the sole lies flat upon the ground. It may be present in infancy or be acquired in adult life, usually either from prolonged; standing or from excessive weight. Flat feet need treatment (exercises) only if the; cause pain.
Flat-foot, or pes planus, is a deformity of the foot in which its arch sinks down, causing the inner edge of the foot to rest upon the ground.