How long it takes for a child with a hand fracture to be able to write normally must be determined by the severity of the injury and the extent to which the fracture has grown and healed. If there is a crack fracture in the finger or hand, there is no obvious displacement, and the fracture is treated regularly afterwards, it will take about 1.5-2 months to be able to write normally. The fracture must be fixed for about 3 weeks, and the external fixation must be removed only after 3 weeks of fixation, and the finger must be given movement and functional exercise, and the finger is stiff at first and cannot write temporarily. If there is a comminuted fracture in the hand or the fracture affects the joint surface, it is possible that the exercise time at the later stage of the fracture will be relatively longer, possibly about 1 month longer than a normal fracture.