Fibrous bone cortical defects can be treated without measures or through surgery, depending mainly on the severity of the damage. 1. Take no action: the scope of the loss is relatively small, so it does not need special treatment and can be observed first. 2. Can be treated by surgery: for example, the fibrocortical defect involves the epiphysis, or the fibrocortical defect involves a relatively large area and has the risk of fracture, which needs to be treated by thorough surgery. The main form of surgery is a thorough debridement of the lesion, followed by bone grafting, which is then fixed with plates and screws. Local inactivation and irrigation are also carried out, and then the cavity is fixed and filled using one’s own iliac bone tissue. It is recommended to go to the relevant specialized department for examination and corresponding treatment in time to avoid delay.