The auricle, part of the outer ear, is composed mainly of cartilage and has the function of collecting sound waves. The auricle is susceptible to various contusions, cuts, lacerations, disconnections and firearm injuries. Improper treatment can lead to perichondritis and cartilage necrosis, leaving the auricle deformed. After the auricular injury will affect the beauty, so how to shape the auricle after injury? The following is an introduction to the plastic repair of auricular injury: 1, the repair of acute injury to the auricle The auricle is located in the prominent part of the skull, easy to be damaged. In particular, auricular dissection injury is more common, there are cuts, human or animal bites, work-related injuries avulsion, etc., direct in situ sutures basically can not be viable, but also need to be surgically removed again, resulting in auricular defects, only six months after the outer ear reconstruction. We have learned a lesson in treating this type of injury, that is, if you bring a free auricle to the clinic within 24 hours of the auricular dissection injury, we can suture the disconnected auricular cartilage to the site of the original cartilage and then bury it under the skin of the mastoid area, and lift the cartilage after 4-6 months to complete the treatment. This surgical method avoids the pain of transplanting rib cartilage to repair auricular defects, and the autologous auricular cartilage can maintain elasticity after repair, without the raw and fat disadvantages of rib cartilage repair. 2.Later repair of auricular defect After the auricular dissection injury, improper treatment such as direct in situ suturing will result in necrosis and eventually auricular defect. There are also patients with auricular defects caused by burns, infections, and tumor removal. Our common treatment method is to use autologous rib cartilage to repair the defect. This surgical method can repair any size defect, but the auricle is stiff and hypertrophic after repair. If the auricular defect is small, it can also be repaired using cartilage from the normal side of the auricle, which does not affect the shape of the normal auricle, and the repaired auricle can be close to the normal auricle. 3.Treatment of auricular keloid Often burns lead to the formation of keloid in the auricle, especially in the ear wheel. Many scholars use intra-scar hormone injection or radiation treatment after surgical excision, but the results are not satisfactory. The method we use is the expansion flap of the mastoid area to repair the keloid, which has exact effect and does not leave any after-effects. 4. Scar growth in the auricular defect area The auricle is defective after burns, and there is scar formation and growth around the defect, in which case there is no suitable skin to reconstruct the outer ear. If the outer ear is reconstructed using scarred skin, the shape is bloated and the contour is unclear. Instead, we use excision of the scar, skin implants on the fascial surface of the mastoid area, and subfascial implantation of dilators to prefabricate the skin for the reconstructed outer ear in this way. We have completed several cases and obtained satisfactory results.