The need to remove the steel nail of the fracture needs to be analyzed according to the specific condition of the patient. It is recommended to remove the nail after the fracture is completely healed in the following cases: 1) children’s fractures, children are still growing and developing, the nail may affect the growth and development of the bones. 2) the nail affects the movement of the joint, once this happens, it is recommended to remove it. 3) the nail is located under the skin or in a weak place, which affects the patient’s life and daily movement. If the fracture does not affect the daily life, it is not recommended to remove the nail. 4. The nail located in the pelvis, acetabulum and cervical spine is more risky or difficult to remove, so it is not recommended to remove it.