For wrist fractures, the time to remove the cast is determined by the age of the patient and the extent of the injury, usually about 4-6 weeks. Most wrist fractures occur in the elderly and are caused by slipping and falling and landing on the palm of the hand. In mild fractures, there is slight local swelling and pressure pain. In this case, if there is no displacement, it can be fixed with a cast or splint directly and can be recovered in 1 month. If the fracture is more serious, and the fracture is obviously displaced, the doctor needs to do a traction reset first, then take pictures, and if the alignment is good, it can be fixed with a cast. For comminuted fractures or elderly people with osteoporosis, healing is relatively slow and the fixation time should be extended by 2-4 weeks, usually 6-8 weeks. If the cast is removed too early, it may cause fracture displacement, non-healing or deformed healing. For wrist fractures, adequate braking must be applied during treatment, and the injured hand should not hang too low to avoid aggravating swelling.