What are the stages of fracture healing?

(1) evolution period of hematoma tissue.

(2) Primary callus formation period.

(3) The forming stage of callus transformation.

Many bone growth factors are related to fracture healing, including bone morphogenetic protein (BMP).

It has strong cross-species osteogenic activity (that is, inducing undifferentiated mesenchymal cells to differentiate into cartilage or bone, and its effect is not species-specific) and bone injury repair.