Clavicle fractures are usually mild to moderate in healing at 20 days and do not heal completely. The situation is that within two weeks after the clavicle fracture occurs, there is local hematoma mechanization, gradually forming fibrous joints, and in about three weeks, some of the original bone scabs form and connect the fracture end, which further improves the stability of the fracture end, but cannot resist the stress and does not achieve complete healing. At this time, if external force is applied or the shoulder joint is moved in advance, the clavicle fracture may be displaced again and even affect the smooth healing of the fracture. Therefore, around 20 days after the clavicle fracture, the patient still needs to be protected locally from excessive rehab movements and also from local trauma, such as a fall. If this happens, it will affect the smooth healing of the patient.