The alar reduction incision is located in the alar sulcus and alar margin, which is well exposed and easy to operate. Because alar reduction removes part of alar tissue from vertical and horizontal directions, it corrects alar length and reduces nostril circumference. After operation, the alar hypertrophy was significantly improved compared with that before operation, and the appearance of the whole nose was more harmonious and beautiful. Moreover, the scar of alar reduction operation is small, which achieves a good alar reduction effect. In order to prevent scar after alar reduction, it is necessary to do a good job of nasal care before and after the operation, and minimize outdoor activities after alar reduction to avoid touching the surgical site and causing pain.