If a child has bone pain, it may be due to the following reasons: 1. It may be caused by too rapid growth and development. Many adolescents are often prone to this condition, due to rapid growth in height in a short period of time, resulting in the supply of calcium in the body can not keep up with the situation, may produce osteoporosis, followed by bone pain, often in the lower leg is more common. 2, there may be bone occupational lesions. For children and adolescents, bone tumors, such as osteochondroma or osteoblastoma, may easily appear in the near joint area, that is, the epiphysis of the bone. Once this occurs, it often leads to localized bony protrusions with severe pain. 3. Acute septic osteomyelitis may exist, which is often caused by trauma or systemic infection around the bone due to the patient’s recent strenuous activities, followed by bone related infections. Once this type of disease appears, it often manifests as a generalized high fever, chills, and significant redness, swelling, and pain around the onset of the bone.