Allogeneic rib cartilage rhinoplasty can have three problems, as follows: 1. Allogeneic rib cartilage comes from cadaveric rib cartilage, and it is not very clear about the age and sex of the cadaveric source, whether it has underlying diseases or infectious diseases, and it is not very clear about the radiation dose, decalcification and processing methods of allogeneic rib cartilage, and there is no very standardized procedure or standard, so its source is questionable; 2. The source of allogeneic rib cartilage is not The source of allogeneic rib cartilage is not the own rib cartilage and has a rejection reaction, which can lead to serious complications such as infection or surgical failure if there is a rejection reaction; 3. The survival of allogeneic rib cartilage after transplantation to the autologous body can lead to collapse of the scaffold due to absorption over time, causing changes in the shape of the nose.