The materials used for rhinoplasty are generally swelling, silica gel, hyaluronic acid and autologous cartilage. The safer material is autologous cartilage, which has low absorption rate and can survive without blood supply. The model is easy to carve and trim, and it is an ideal material for rhinoplasty. Autologous cartilage augmentation rhinoplasty can generally be taken from ear cartilage, nasal septum cartilage and costal cartilage. Zhang Hui from Hohhot will help you answer.