The following symptoms may occur after the fracture is fixed with a plate: 1. Sudden pain, which gradually decreases after the fracture is fixed firmly, may be caused by gradual or sudden loosening of the plate if there is sudden pain, especially if there is obvious sharp pain, stabbing pain or swelling at the site where the fracture was fixed. 2. Local swelling may occur after the plate is loosened due to displacement, which will gradually decrease after the fracture is fixed firmly. If there is too much activity or trauma, swelling will appear after the plate is loosened. 3. Loosening or displacement of the plate will cause local deformity, which can be seen in the appearance of the deformity caused by the plate displacement, and at the same time, abnormal activities can occur, and there can also be external manifestations such as topping the skin or bulging under the skin after the plate displacement, and timely treatment is needed for the above situation.