A normal bone age test only requires a localized radiographic examination to determine whether a child’s bone age is normal. In general, the price of a localized radiographic examination at a tertiary hospital is about$55, and if the registration fee and consultation fee are included, the price of the whole bone age test will not exceed$90, which is relatively inexpensive. If you suspect that your child’s bone development is delayed or too fast, you should have a bone age test to determine if your bones are actually developing at a normal age. If the bone age is on the large side or on the small side, it is important to proactively determine the primary cause of the disease, such as rickets due to vitamin D or calcium deficiency, or abnormal thyroid function. Therefore, effective bone age determination at the appropriate age can accurately rule out related diseases in a timely manner.