Many parents of children with congenital microtia begin to worry about their child’s ear deformity as soon as it is discovered at birth. Many parents who bring their babies to the clinic have a common question, that is, is it good to do ear reconstruction surgery. In our clinic, we generally require that the child be over six years old and at least one meter two in height to meet the criteria for microtia surgery. Why is it better to do the surgery at the age of six? 1.According to the growth pattern of the auricle. In terms of the growth pattern of the auricle, at birth, the auricle is 66% of an adult’s, at the age of 3, the auricle can reach 85% of an adult’s, and at the age of 6, it can reach 95% of an adult’s. Around the age of 10, the auricle’s width almost stops growing, and the distance between the auricle and the mastoid will remain unchanged in the future. 2, from the rib cartilage development considerations, at least until the child is 5-6 years old, there is enough rib cartilage for ear reconstruction, then you can use autologous cartilage to carve out a sufficient size of the ear support. 3. Psychologically, children’s awareness of the body is usually formed at the age of 4 to 5 years old, which is the age when they are about to go to school. Therefore, it is ideal to complete the ear reconstruction surgery before the child goes to school, so as to avoid the psychological damage caused by the child’s abnormality. For most congenital microtia, the optimal age for reconstructive ear surgery is around 6 years old, and for some children who develop faster and better, the ear reconstruction surgery can be started as early as 5 and a half years old. Ear reconstruction surgery for microtia is not a very difficult surgery under today’s medical development, and the reconstructed ear can look almost the same as the normal ear under non-close observation. The most important thing is the mentality of the parents and the child, and it is also important to choose an experienced doctor and a regular hospital.