The normal height of the central labia minora in adult women is about 1.0 to 37.5 px. In the standing position, the labia minora on both sides are close to the labia majora on both sides and are not exposed or are slightly exposed. If the central height of labia minora exceeds the normal standard, it is called labia minora hypertrophy. When the labia minora hypertrophy is serious, it can cover the urethral opening and vaginal opening, affect the urine flow or the direction of urine flow, pollute the surrounding environment, and even affect the patient’s sexual life.