Since the nose is located in the center of the face, the nasal bone is often fractured after trauma caused by car accidents, fights, etc. The appearance will show a deviation of the nose and may be accompanied by impaired ventilation. After nasal trauma, a CT examination is recommended to clarify the location and severity of the injury. There are two best times to treat nasal trauma. 1.5-10 days after the trauma, when the acute edema of the nose gradually subsides, the nasal bones can be repositioned manually to correct the deviation. 2.Six months after trauma, at this time, the nasal septal cartilage can be corrected and the nasal bone can be osteotomized to improve the appearance and nasal ventilation.