Ear cartilage is mainly taken from concha cavity cartilage. The wound is hidden and there will be no obvious scar. Advantages: 1 Think of yourself as yourself, and there will be no rejection. 2. The histocompatibility is good and stable, which can heal with nasal tissue and is not easy to shift. 3. Cartilage tissue gradually transforms into nasal cartilage after implantation, which is equivalent to giving the nose a second development.