Rib bone scab formation refers to the formation of new bone at the broken end of the fracture, indicating that the rib fracture is in the state of fracture healing. 1. Bone scab formation means that the fracture end heals when the bone is repaired by trauma. Bone scab formation is generally divided into internal bone scab formation, external bone scab formation, and internal and external bone scabs encircle the fracture end and promote the gradual healing of the fracture end under the state of continuous calcification, and the continued calcification can increase the strength of the bone. 2. The healing of rib fracture is also the same as the healing of other parts of the fracture, with the formation of bone scab and with the continuous calcification and eventually form a continuous bone scab until the disappearance of the fracture line, at this time the fracture to achieve clinical healing, generally need about 6 months time. 3. It takes 1~2 years after the rib bone scab is formed for the bone scab to remodel, and then return to the bone structure before the fracture.