Once radiation osteomyelitis occurs, the patient is in pain, usually there will be ulcers in the mouth, the bone will be exposed, there is a bad taste and smell, and some patients are in great pain, which is often difficult to describe in words. Once the tissue breaks down and suppurates, the pus will flow for a long time, and the patient’s desire for treatment is very strong. Treatment is usually based on the extent of the affected bone, if it is very limited, local scraping is used to preserve the normal bone and close the wound tightly, while adjuvant treatments, such as physiotherapy and hyperbaric oxygen chambers, are also conducive to the healing of the mandible. However, if the bone has been damaged more, more extensive, this time often need to remove the entire bone section, until the section bleeding, blood flow. The defects created after this treatment require more complex surgical procedures for repair and reconstruction.