Miss He,70 years old, had sacrococcygeal ulcer, exacerbated for half a month with edema of lower extremity for one week. She came to Clifford Hospital on  July 4, 2007. Due to long-term bed rest, she developed sacrococcygeal ulcer 2 months before hospitalization. Initially the size was 1cm. The patient's family usedantibiotics to clean the wounds. However, the condition did not get any better. They sent her to Clifford Hospital, where she received Medical Ozone Therapy and nutrition support. Finally, the patient's condition became better and she was discharged.