Earring is a common congenital auricular deformity that is generally believed to be due to the incomplete formation of the ear chakra or the development of the cartilage of the ear nail during embryonic life. These two deformities may exist separately or may occur together. Bilateral auricular deformities are more common, but there are differences in the degree of deformity between the two sides. The same deformity can usually be found in the parents and siblings. In normal ears, the angle between the ear nail and the ear boat is 90 degrees, but in the case of the earring, the angle between the ear nail and the ear boat increases to 150 degrees or more, and the upper foot of the opposite ear wheel is flattened. In more severe cases, the angle between the ear nail and the ear boat disappears completely (180 degrees), the opposite ear wheel and its upper and lower legs also disappear completely, and the entire auricle is at an angle of 90 degrees to the side of the skull. In extremely severe cases, the edge of the ear wheel is not curled, and the entire auricle has no curled back part, forming a saucer-like structure.