Rhinoplasty refers to the operation of cushioning the external nose by filling the nose with autologous, foreign tissue or tissue substitutes, thus improving the appearance of the nose. There are two kinds of rhinoplasty incisions: columella incision and intranasal incision, among which the intranasal incision (near columella) is widely used because the incision is hidden and there is no trace on the outside. It should be noted that aspirin should not be taken within two weeks before operation, because such drugs will reduce the coagulation function of platelets. Patients with hypertension and diabetes should inform the doctor in detail at the time of initial diagnosis, so that the attending doctor can confirm the operation plan, ensure the health before operation, have no infectious diseases or other body inflammation, and do not wear makeup before operation. Women should avoid menstrual period; Men should quit smoking one week in advance.