Prior treating physician diagnosis of Bone contusion, treatment reduced work schedule, limited to no weight bearing until healed

IME agrees with previous diagnosis of bone contusion. Bone bruises/contusion which can take time to heal depending on severity, anywhere from 5-11 months to heal. IME states can return to pre-injury work without restrictions which entails 40 plus hours, prolonged, walking, standing and climbing. What will happen if re-injured or worsening symptoms occur?