Under normal circumstances, the central height of the labia minora of adult women is about 1.0-1.5 cm, and when standing, the labia minora on both sides are close together between the labia majora on both sides, or not exposed or slightly exposed. If the labia minora is too thick and too large, it will affect the dynamics of urine force and the direction of urine flow, and cause discomfort by rubbing against each other when walking, and even affect the sexual life and self-confidence of the patient. It is mostly related to genetic factors. The main point of diagnosis is that in adult standing position, the labia minora are clearly exposed, with a central height of more than 2cm, or extremely hypertrophic. The main treatment for labia minora hypertrophy is surgery, and there are many surgical methods. The surgery is performed under local anesthesia, and all absorbable threads are used, so there is no need to remove stitches. The swelling is obvious in the first three days after surgery, and then gradually decreases, until the swelling mostly subsides after one month, and completely subsides after three months. The first five days after surgery should be devoted to the care of the incision and the cleaning of the perineum.