Five months after intramedullary nailing of the tibiofibular bone, localized fracture lines are visible, indicating that the postoperative recovery is not satisfactory and the fracture breaks have not healed well. Intramedullary nailing in the tibiofibular bone can effectively fix the fracture site and promote the growth and healing of the local bone, but the fracture line can still be seen after five months, which means that the bone tissue has not completely grown well. If the fracture line can still be seen after five months of placing intramedullary nails in the tibia and fibula, it is important to consult a doctor for regular treatment so that the fracture line slowly blurs and disappears. In the later stages, you should also insist on regular functional exercises, and avoid excessive force on the fracture site, so that you can slowly return to normal.