How long it takes to return to normal after lip bleaching depends on the patient’s personal constitution, and the exact time varies from person to person. Lip bleaching is an invasive operation that requires the skin of the lips to be pierced so that the color can enter the skin well, and the patient’s lips will be swollen, peeling, and not colored after the operation. If the patient’s physique is poor, it may take about 4 months to return to normal. If the patient is a keloid, it will take longer, possibly more than half a year. If the post-operative trauma becomes infected, it may lead to lasting non-healing and the time to return to normal will be relatively longer. Therefore, it is recommended that lip bleachers consult the plastic surgery department of a regular hospital for information, pay attention to not getting wet during the wound recovery period, do not apply lipstick, maintain care for lip hygiene, and avoid eating spicy and stimulating foods to prevent infection.