The pain is still felt after the fracture is healed, mainly due to the following reasons: the first reason is that while the fracture is healed, the surrounding soft tissues are damaged, and when the soft tissue damage is serious, although the fracture is completely healed, the soft tissue will form a scar after healing, which will cause pain at the scar due to the poor blood supply to the local scar tissue; the second reason is that the fracture requires The second reason is that after the fracture, the joint of the limb needs to be fixed for a long time and cannot be moved, so soft tissue adhesions will appear at the joint, which will cause pain at the joint when the external fixation is removed; the third reason is that after the fracture is not weight-bearing for a long time, which will lead to disuse osteoporosis, and pain will appear at the fracture when it is moved after the fracture is healed.