The standard height for a 15-week-old boy is 169.8cm and the standard height for a 15-week-old girl is 159.8cm. To find out if the actual height of the child is normal, the child needs to be tested for bone age, which is an orthopantomogram of the left wrist joint. According to the bone age, the actual height corresponding to the bone age, combined with the child’s height to see if the difference is normal. It is normal to be within one standard deviation up or down, and if it is less than 2 standard deviations it is considered short. Girls are usually close to closing when their bones are around 15 years old, so there is not much room for treatment even if they have short stature. If a boy is significantly behind in bone age at around 15 weeks of age, and his height is also slightly short, there is still room for treatment, and he can be further treated by checking the MRI of the pituitary gland and related tests such as growth hormone.