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Arch of the foot - Definition


The arch of the foot is the anatomical part of the foot located on its underside. It is the upwards curve of the sole that is formed by the bony and muscular structures of the foot. When the arch is fallen, the condition is called flat-feet, common in children and potentially requiring special insoles from adolescence, with surgery reserved for extreme cases. In contrast, feet can be described as high arched when the arch is rounder and higher. The cause for flat feet is, in most cases, unknown, whereas high arched feet can have a neurological cause. These malformations can lead to further deformity in the rest of the feet, and pain when walking.