The hazards of not removing the nail of fracture include difficulty in removing the nail, broken nail, infection and so on. 1. Difficulty in taking out the nail: for those who fail to take out the nail in time after the fracture has healed, it may lead to difficulty in taking out the nail in the later stage, or even the nail is buried by the bone tissue, resulting in the inability to take out the nail and other unfavorable situations. 2. Broken nail: If the nail is not removed in time for a long period of time, the nail may break with the limb activities and other circumstances, which may lead to local pain and other uncomfortable symptoms. 3. Infection: If there is a bacterial infection in the body, low immunity will reach the bloodstream to form a biofilm localized in the steel nail, resulting in localized infection of the steel nail. In addition, the long-term existence of steel nails, its surrounding will also lead to osteolysis and aseptic loosening of steel nails occur. After implantation of the nail, the fracture should go to the hospital for regular checkups, and the nail should be taken out in time after the fracture is healed to avoid the above situations.