Normally, a boy is 14 and a half years old and his height is between 154.5-181.8cm. If a boy is 155cm tall, he is slightly shorter, but generally normal.
The normal height range for a 14 and a half year old boy is usually between 154.5-181.8cm, with an average height of 168.2cm. so if a boy is 14 and a half years old and has a height of 155cm, which is lower than the average, but is also basically within the normal range, it is generally normal.
It should be noted that the child’s height is affected by genetic factors, acquired nutritional factors, exercise and other factors, there are individual differences in the development of height. In addition, the growth of children’s height is not equal to the speed of increase, the evaluation should be based on individual children’s own changes, can not take the so-called “normal value” as a “standard” for evaluation.
However, if a boy’s height growth slows down significantly or even stops, this is generally abnormal and it is recommended that he seek medical attention in a timely manner and be treated aggressively if necessary.