In the process of children's growth and development, the growth of height may be slow, or it may be too fast, lower than that of normal children of the same age, or significantly higher than that of normal children of the same age. It is necessary to consider checking the bone age to see whether the actual situation of bone age is consistent with the actual physiological age. Bone age is the abbreviation of bone age, which needs to be determined by the specific images of bones in X-ray photography. Usually, the left wrist is examined by X-ray, and the doctor can determine the bone age by observing the development of the ossification center of the phalanx, wrist and lower radioulna of the left palm.

Extended data:

The determination of bone age is based on the X-ray film of bone and the X-ray sign of bone development, that is, the sign of maturity. At the end of 19, boas first put forward the concept of growth rate. Shortly after discovering how to take X-rays, human growth scholars quickly applied this concept and technology to the study of bone development, and made long-term exploration and continuous improvement on the method of judging bone age. There are many methods to determine bone age, which can be divided into three types: bone age counting method to measure ossification center, bone age mapping method compared with standard atlas, and bone age grading method according to bone development stage, and it is developing towards computer-aided assessment of bone age.

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