Metaphyseal radiographs are taken at the point where the long bones meet the long bones, usually at the palms of the hands and lower extremities. The epiphysis is a layer of cartilage located between the epiphysis and the metaphysis. This layer of cartilage is used for growth, and before the epiphysis closes, the cartilage will continue to ossify, and the hormonal effect on the growth of the cartilage will result in the growth of the long bones. When the epiphysis closes, the long bones stop growing. The examination of epiphysis is mainly through X-ray, CT examination, each long bone has epiphysis at both ends, is the growth of the bone tissue, but in the clinic usually on the palm of the hand and the lower limbs to check, not only can accurately show the epiphyseal closure situation, but also convenient to carry out the examination.