There are several causes of vulvar hypertrophy: 1. Consider congenital labial dysplasia, which may be caused by mutations during embryonic development, 2. It may be caused by infection or trauma, which can lead to inflammatory reactions if the labia are often stimulated, resulting in redness and hypertrophy. It may also be caused by the frequent use of hormonal drugs, which are all acquired causes. 3. Consider that it is caused by gynecological diseases, which can lead to various symptoms such as puffiness and hypertrophy due to long-term local stimulation or friction. The long term stimulation of the vulva will also lead to increased vaginal discharge and more serious infection, so attention should be paid to timely conditioning treatment. 4, may be due to long-term excessive exercise or other external causes and other problems caused.