The shape of each nostril that needs to be corrected is different, and it can only be corrected by choosing a suitable surgical method, which is divided into the following situations: 1. When the nostril is triangular: the columella is short, which can be added to the columella after the alar is cut off, and the shape of the nostril can be changed when the columella is elongated.

2. Nose asymmetry caused by alar cartilage hypoplasia can be corrected by strengthening alar cartilage with auricular cartilage.

3. The asymmetry of nose caused by abnormal position of nasal spine can be corrected by correcting nasal spine.

4. Nasal deformities caused by scar tissue or multiple operations can be corrected by auricular cartilage composite transplantation or laser.