Sternal fractures are not very common, but they need to be prevented and treated promptly if they occur. The occurrence of minor sternal fracture may not be taken seriously at the beginning, but after 2 to 3 weeks it is found that the pain still remains, while the swelling of soft tissues is not obvious, and the pain is felt to be intense during exercise. Measures: In addition to the usual nutritious food rich in calcium that should be consumed, daily exercise is essential to gradually enhance the thickness and density of the bones to better resist external impact. Once a fracture occurs, the injured person should be laid flat immediately and should not be moved blindly, let alone massaged or pulled, because the fractured bone is likely to damage the surrounding blood vessels, causing blood stasis and edema, further increasing the medical difficulty. After checking the location of the injury, immediately use wooden sticks, boards and elastic bandages to fix the injured part, learn simple bandages, do timely hemostasis and fixation treatment, and immediately send to the hospital to prevent the cracked part from being easily reunited.