Whether a cast can be removed at 36 days after a fracture is broken depends on how well the fracture is healing. It can be removed if the fracture is healing well and should not be removed too soon if it is not healing well. Fracture healing can be divided into 3 phases: Phase 1 is the period of evolution of hematoma mechanization, which takes about 2 weeks. Phase 2 is the period of primitive bone scab formation, which takes about 4 to 8 weeks. Stage 3 is the period of remodeling and shaping of the scab, which takes about 12 weeks. Generally, the cast can be removed after the formation of the original scab. However, there are patients who recover more slowly and it may take longer. Therefore, patients with fast healing bones generally need 4 to 8 weeks to remove, and slower healing will take about 6 to 12 weeks, or even longer. Fracture 36 days specific circumstances should be based on the results of the review after a comprehensive judgment, so as not to remove too early will affect the healing of the fracture.