However, some friends are born with asymmetrical faces, one side is big and the other is small, which leaves great regret for a perfect life. So how to correct the defect of facial asymmetry? Let the experts do an answer for you! Facial plastic surgery can effectively solve the problem of facial asymmetry, but there are many reasons for facial asymmetry. If you want to correct facial asymmetry, you must find out the reasons and then take corresponding facial correction methods according to different reasons. 1. Teeth cause facial asymmetry. Teeth cause facial asymmetry, also known as odontogenic mandibular deviation. Most patients' faces are symmetrical when their teeth are closed, which is hard to find when looking in the mirror, but once they speak, they will see a very ugly face, which seriously affects their social life and psychological self-confidence. In view of this facial defect, fixed appliances can be used to correct teeth. 2. Skeletal reasons lead to facial asymmetry If it is caused by the asymmetry of mandibular development, corresponding surgical methods can be taken to correct the height difference between the two sides of the maxilla, correct the angular deviation of one side of the mandible or the asymmetry of the size and shape of both sides of the mandible. 3. Facial asymmetry caused by soft tissue According to the thickness of fat on both cheeks, liposuction or fat transplantation can correct facial asymmetry caused by fat asymmetry; Remove buccal fat pad and facial muscles.