The bone age test can be a relatively accurate assessment of a child’s growth and development, which can be of great help to the child’s growth. The bone age test is based on scientific analysis of specific parts of the body using X-rays to draw the appropriate conclusions. First of all, according to research, every human bone development is similar, and there are continuity and stages. The bone age test uses X-rays of the left wrist to determine bone age based on the degree of development of the metacarpal phalanges, wrist bones and the lower radius and ulna. Bone age testing can help to understand a child’s growth potential and predict the child’s height in adulthood, and it can also be helpful in pediatric endocrine disorders. Secondly, the bone age test for children does not cost a lot of money, usually between 50 and 100, and the results are usually available on the same day, but the bone age test needs to be done at a regular hospital. Finally, in order to ensure the healthy growth of children must ensure the child’s nutrition, usually more fresh fruits and vegetables for children, appropriate to eat protein-rich food, such as lean meat, fish and shrimp, to ensure that the body’s trace elements in the normal range, usually let children develop a good daily routine, living habits, eating habits, children will grow normally. The growth of the child lies in the usual good habits, reasonable diet, bone age test also does not cost a lot of money, if necessary, the baby can do bone age test can make parents more at ease.