Hearing loss is mainly due to the congenital hypoplasia of the ear, which makes the upper part of the auricle buried under the skin of the temporal scalp, and there is no obvious posterior auricular sulcus phenomenon. Oral ulcers are rare in China, and most of them are men. The male-female ratio is about 2: 1, the left-right ratio is 2: 1, and bilateral malformation accounts for about 40%.

One of the surgical methods to correct deafness is local flap transfer.

This kind of plastic surgery for hidden ear adopts the method of "V-Y" to advance the flap, and designs a triangular flap based on the upper part of auricle. Lift the triangular flap, peel off the adhesion surface of the auricle, and then fold the triangular flap downward and backward on the formed wound. The two sides of the donor site wound are secretly separated and then directly pulled and sutured.

The second surgical method of deafness correction: local flap plus skin grafting

For patients with severe deafness or low hairline above the ear, it should be noted that some soft tissue should be left on the cartilage surface during the operation, which is beneficial to the survival of skin graft. After operation, the skin graft should be supported by mould for more than half a year to prevent skin graft contracture and cranial ear groove from becoming smaller or disappearing. For patients with moderate or mild skin defect, local skin flap and skin graft should be used as far as possible.