In addition to injecting fillers, the correction of thin lips can also be corrected by surgery. The main methods are as follows: (l) Double Y-V plasty on the lateral side of red lip: it is suitable for simple thin lips with no drooping of upper lip skin and unclear lip arch. After suborbital nerve block anesthesia or local infiltration anesthesia, gently evert the upper lip, and make an inverted V-shaped incision on both sides with the boundary between the red lip and the dry lip as the horizontal axis. The red lip mucosa was cut to form four mucosal flaps with moderate chromium. Push up and down the upper and lower mucosal flaps on the horizontal axis respectively, and insert the inverted V-shaped mucosal flaps on both sides in the opposite direction, with their tips opposite or crossed, so as to increase the thickness of red lips and make lip bead obvious. (2) Shortening of the upper lip: It is suitable for those with thin lips, drooping upper lip skin and clear lip arch. By shortening the height of the upper lip, the effect of thickening the red lip can be achieved. Bilateral infraorbital nerve block anesthesia. Gently push the upper lip skin at two points with one hand to fully expose the red lip, and estimate the skin width to be removed. Then draw the skin area to be removed at the junction of the bottom of the nose and the upper lip, and the incision lines on both sides should rise to a certain arc to reach the alar foot. Skin tissue is removed according to the design, and sometimes appropriate muscles need to be removed. Try sewing first to observe the exposure degree of red lips. If the exposure is not enough, a proper amount of skin should be removed until the exposure is satisfactory, and the muscles and skin should be stitched in layers. In order to ensure the surgical effect, there are several points for attention in thin lip correction: (1) Before lip augmentation surgery, the patient should communicate with the surgeon, make clear the desired effect and achievable effect, and discuss the overall aesthetic feeling. (2) Try to avoid pressing the injection site after lip augmentation surgery. (3) Pay attention to diet within 1 week after lip augmentation, and it is best not to eat irritating food and hard food. 1.(4) After operation, the incision was exposed or covered with chlortetracycline ointment, and the stitches were removed after 7 days.