There are six symptoms after a fracture as follows: First, swelling. At the fracture site, swelling will occur around the limb, thickening of the limb, petechiae, purple blisters, blisters, etc. under the skin. Second, pain, severe pain at the fracture site, pain when moving or carrying the limb or when tapping the heel with the hand. Third, dysfunction, after the fracture, the patient’s original limb function, such as grasping, pinching, holding, gripping of the upper limb, or the weight-bearing function of the lower limb will be impaired, that is, usually not able to walk, not able to run. Fourth, deformity, after the fracture, there will be a local high protrusion depression or special deformity, such as the distal radius fracture of the meal fork-like deformity. Fifth, bone rubbing sound, that is, when examining or moving the patient’s limb, you will hear a clicking sound called bone rubbing sound. Sixth, abnormal activity, also known as abnormal activity, osteochondral sign, when the fracture occurs in the bone stem area will appear abnormal activity, as if the bone has become soft, can be flexed and extended, stretching the same activity.