Generally, the cartilage in the concha cavity is taken through the posterior auricular incision, and the cartilage in the auricular fossa will regenerate. The shape of auricle is mainly supported by auricle cartilage, and the supporting effect depends on the support of marginal cartilage of helix cartilage; The excised auricular cartilage is only the middle part of the auricular cartilage, just like a disk, and the shape of the middle disk bottom remains unchanged. After the excised auricle cartilage healed, the integrity of auricle still existed.