70 per cent of children of different cartilage foot, foot support and Adults: Infant feet have 70 per cent of cartilage, standing, feet shape because the weight of oppression often deformed foot unimaginable burden .... The shape of the foot in the shoe and adults are different: the baby's foot shape fanning; the shape of the foot is the front coarse adults. Walk way differently from adults: children are the heel and toe walk way at the same time the ground to balance the following Scattered around, very unstable. The pace of shock hazard: impact from the pace easily convey to the body and brain; baby feet did not form a front arch, foot buffer does not have the shock effect. The study found that childhood is wrong shoes cause foot lesions the following reasons: flat feet, hallux valgus, dents refers valgus.