The infinite development of transportation has shortened our urban distance in time, and thousands of mountains are no longer an excuse to prevent loved ones from seeing each other, while the increase in cars and road kill has led to frequent car accidents, resulting in an increase in the number of patients in surgery and orthopedics dental ophthalmology and other facial trauma departments. Whenever there is an emergency scene of the injured person from Terai, as long as his whistling normal after I involuntarily consider his nose ear teeth okay? Acute auricular injury repair approach The auricle is located in the prominent part of the skull, easy to be injured. In particular, auricular disarticulation injuries are more common, such as cuts, human or animal bites, and work-related avulsions. Direct in situ suturing is basically not viable and requires another surgical removal, resulting in an auricular defect that can only be reconstructed in the outer ear six months later. 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 disadvantages of stiffness and hypertrophy after rib cartilage repair. Late repair of auricular defects After auricular dissection injury, improper treatment such as direct in situ suturing will result in necrosis and eventually auricular defects. 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 without affecting the shape of the normal auricle, and the repaired auricle can be close to the normal auricle. Scar growth in the area of the auricular defect The auricle is defective after a burn injury 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. In this case, we prefabricate the skin for the outer ear by excising the scar, placing a skin graft on the fascial surface of the mastoid area, and burying a dilator under the fascial.