A corner mouth lift, also known as an "oral commissure lift" or "smile lift," is a cosmetic surgical procedure designed to elevate the corners of the mouth, which can droop over time due to aging, gravity, or muscle weakness. The procedure typically begins with the patient under local anesthesia with or without sedation to ensure comfort. The surgeon makes small, precise incisions at the corners of the mouth. These incisions are carefully planned and placed to minimize visible scarring and to follow the natural creases and lines of the skin.

Once the incisions are made, the surgeon repositions and lifts the underlying tissues to elevate the corners of the mouth, creating a more youthful and pleasant expression. In some cases, small amounts of excess skin may be removed to achieve optimal results. The incisions are then closed with fine sutures to promote healing with minimal scarring. The entire procedure usually takes about one to two hours, and patients can typically return home the same day. Post-operative care includes following the surgeon's instructions on wound care, avoiding strenuous activities, and attending follow-up appointments to monitor healing and ensure the best possible outcome.