If you see a fracture line blurred or a scab growing, and there is no obvious local pressure pain, swelling, or longitudinal percussion pain, you can start to walk slowly and start functional exercises. However, it is important to note that for two fractures, it may take longer to walk on the ground, such as the navicular fracture or talus fracture in the foot, where the blood circulation is not as good and the growth rate is slower, and it may take 2.5-3 months to see the growth of bone scabs before walking on the ground.