The height of a 10-week-old girl is 140.1 cm and the height of a 10-week-old boy is 140.2 cm. The height of a child is related to a combination of genetic factors, diet, environment, disease, etc. If a 10-week-old child is about to enter puberty, he or she needs to be actively tested with a left wrist orthopantomogram, i.e., a bone age test, to determine if the child’s height is within the normal range. If the child’s height is within the normal range. If your child’s current height is almost the same as his or her skeletal height, he or she can be observed within the standard height range. Ensuring that your child has a balanced and reasonable diet, gets enough sleep, and engages in appropriate physical activities daily will help your child grow in size. If your child’s actual height is significantly behind the skeletal height, you need to further improve the relevant examination under the guidance of your doctor to avoid your child’s lifelong short height in the future.