When children experience leg pain, it is important to identify what is causing it. The most common is growing pains, that is, because children’s growth rate is relatively fast, there may be a feeling of pain in the limbs. At this time, it is important to check the bone density, blood vitamin D to see, according to the examination of the situation of high-dose vitamin D supplementation, calcium supplementation treatment, which will significantly relieve the manifestation of leg pain. If the child is accompanied by fever and other respiratory tract infections, it is necessary to pay attention to whether it is due to some special diseases, this time it is not recommended to stop the pain, but first check the cause before treatment.