The school age of microtia is 5- 1 1 year.

Let's take a look at what ear deformity is:

Congenital microtia, or congenital external and middle ear malformation, is characterized by severe hypoplasia of auricle, atresia or stenosis of external auditory canal and middle ear malformation, while the inner ear is mostly normal in development and has certain hearing through bone conduction. It needs to be treated by total ear reconstruction and auditory function reconstruction.

The clinical features of patients with congenital microtia mainly involve auricle, external auditory canal and middle ear, while the inner ear is often not involved. According to the degree of deformity, the most commonly used clinical classification is three types:

Grade I: the size and shape of auricle have changed, but the important surface mark structure of auricle exists, and the external auditory canal is narrow, and in severe cases, the external auditory canal appears atresia;

ⅱ degree: the most typical, only vertical helix, sausage-shaped, closed external auditory canal;

ⅲ degree: Only the mass consisting of skin and cartilage is left, and in severe cases, there is no ear.

Professor Wu Jianming said:

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