Inflammation Phase: Right after the fracture, the body forms a blood clot (hematoma) at the break site. This helps to reduce bleeding and lays the foundation for new bone tissue.

Soft Callus Formation: Within a few days to weeks, a soft callus made of collagen (a type of protein) and cartilage forms around the fracture, stabilizing it.

Hard Callus Formation: Over several weeks, the soft callus is gradually replaced by a hard callus made of new bone tissue, which provides more stability and strength.

Bone Remodeling: The hard callus is reshaped and remodeled over several months to years, restoring the bone to its original shape and structure. The body removes excess bone tissue and replaces it with compact bone.

Full Healing and Strengthening: Eventually, the bone regains its full strength and functionality. The remodeled bone may even become stronger than it was before the fracture.