A few days ago, the results of the bone age test for youth players announced by the CFA drew attention: among the 3306 youth players tested, as many as 690 had bone age discrepancies with their age. In fact, for parents of children, they should pay more attention to the height of their children, and the bone age test can reflect whether the growth of children is normal. People will have an actual age from the day they are born, and bones have their own age. However, if the bone age lags behind or exceeds the actual age by more than one year, and at the same time the child also has short stature and abnormal intellectual development, there may be growth problems and further endocrine and other tests are needed to rule out dwarfism. Therefore, for children with height abnormalities, a bone age test can identify the problem in time and intervene in the child’s height development if necessary. What are the conditions for which a bone age test should be done? Bone age testing is required for children who are short. Some children grow early and some grow late, but there is an average height for each age group. For example, the normal height for a small baby under one year old is about 75 cm; for a toddler between one and three years old, the normal height for a girl is about 95 cm and for a boy is about 100 cm. After six years old, children should grow in height by about five or six centimeters per year. There is also a horizontal comparison method, that is, comparing the child with children of the same age. If the child is among the lowest height people in the kindergarten or class, parents should be concerned about the growth of their child. In medical terms, it is necessary to pay attention to the height of children in the lowest 3% of 100 children of the same age, that is, children in the 3rd percentile. These children need to be checked for bone age and endocrinology in a timely manner. If they do not reach the average height or are among the younger age group, they are likely to have reduced growth hormone secretion or thyroid dysfunction and need endocrine checks to see if there are pathological problems. According to the information, nowadays, community hospitals and major hospitals can test the bone age as long as they have X-ray examination, as long as the orthopantomogram of the left wrist bone is taken. Jumping helps children grow taller. Generally speaking, children’s growth is slow for pathological and physiological reasons. For the pathological ones, the disease needs to be treated actively. For the physiological ones, interventions are made through dietary adjustments and increased exercise. For children with physiological slow growth, the first thing to do is to ensure a regular life, adequate sleep and high quality. Secondly, we should pay attention to a balanced diet, not just eating which type of food can grow, but a balanced diet with appropriate intake of lysine and protein foods, and pay attention to the combination of vegetables and carbohydrates. Thirdly, spring and autumn are good times for children to grow. In spring, children should be allowed to go outdoors more often and do more jumping exercises, which are helpful for growth and development.