A woman with facial paralysis on the left side of her face after facelift surgery is considered to be traumatic facial paralysis caused by damage to the facial nerve trunk or neurons during the surgery. Usually, the treatment method needs to consider the degree of nerve damage, and help the gradual recovery through surgery as well as physical therapy. 1. cause: facelift surgery is to peel off the SAMS fascia layer, and then tighten the fascia layer, during the operation, the nerves walking in the SAMS fascia layer may be damaged, if the damage is to the left facial nerve, it may lead to left facial palsy; 2. treatment: if only the facial nerve is damaged But when there is no rupture, the symptoms will generally improve after a period of recovery, but the time varies from person to person. If the facial nerve is broken, the facial movement can be restored by means of neuromuscular transplantation, such as transplanting the nerve muscle on the back or foot to the face, and anastomosing the broken nerve to restore the facial movement flat very well, although the efficiency is only about 50%. In addition, it is recommended that daily oral medications to restore the nerves can be taken as prescribed by the doctor, and physical therapy, acupuncture, heat therapy, and magnetic therapy can also be tried to help promote the recovery of left facial palsy. For people who want to undergo facial medical treatment, it is recommended to consult a regular hospital and seek professional medical help for professional treatment in order to avoid accidents to the greatest extent.