Timing of surgery: The timing of ear reconstruction surgery is important and is one of the main determining factors in obtaining the desired surgical result. The earliest age for outer ear reconstruction can be around 6 weeks old, but the height should be more than 1.2 meters, which is the minimum requirement for ear reconstruction, but cannot be considered the best age. The best age for ear reconstruction is 9, 10 or 11 years old, taking into account rib cartilage development, ear development and psychological development. Too young an age, because of its small, thin and soft autologous rib cartilage development, brings influence to the production of auricular cartilage scaffold, thus affecting the final surgical result, and too early surgery requires cutting more rib cartilage, and the chance and degree of thoracic deformation occurring with one more weight-bearing rib cartilage is higher and heavier than if one less cartilage could be taken at an older age. Although we have solved the technique of ear reconstruction in elderly patients, it is best not to wait until you are too old to operate. As you get older, the texture of the rib cartilage changes and even becomes yellow and brittle, increasing the difficulty of making the cartilage scaffold for the ear.