Hello, thank you for your inquiry. Most auricle deformities are caused by congenital causes. There are many kinds of auricle deformities, including: ① There is no ear, which is relatively rare, showing that there is no auricle on one or both sides, often accompanied by external auditory canal and middle ear deformities. ② Abnormal development of small ears and auricles. (3) Accessory ears or multiple ears, in addition to the normal auricle, there are auricle-like structures or vegetation in the tragus, cheeks or the front of the upper neck, which may be accompanied by abnormal maxillofacial development. Four ears. ⑤ The giant ear and auricle are over-developed, showing that the whole auricle is enlarged or a certain part of the auricle is enlarged. The latter is more common. In addition, there are cat ears, ape ears, hidden ears and so on. Auricular malformation can be treated by surgery, and the age of operation should be determined according to different conditions. For example, simple appendectomy or multi-auricular surgery should be performed before the start of school to avoid psychological trauma caused by students' comments after school, which is not conducive to children's physical and mental health. If bilateral small ears or no ears, accompanied by external auditory canal and middle ear malformation, hearing impairment, it is also suitable for preschool surgery; At this time, surgery is not only to correct auricle deformity.