Normally, the size of the labia minora does not grow after development is complete. However, if due to some acquired factors, such as constant rubbing of the labia minora when walking or chronic inflammatory stimulation, it is possible to cause the labia minora to hyperplasia and hypertrophy. The size of the labia minora is mainly determined by congenital factors. Genetic factors play a major role in the development of the labia minora, so the size of the labia minora usually does not change after development is complete. Reactive hyperplasia and hypertrophy of the labia minora occurs mostly due to localized long-term chronic irritation or constant friction, such as vaginitis, vulvitis, or friction that occurs when a woman walks. Reactive hyperplasia and hypertrophy of the labia minora caused by acquired factors are usually characterized by inconsistent growth of the labia minora bilaterally, with a large and small appearance. There may be other reasons for the increase in the size of the labia minora, it is recommended that regular medical check-ups be conducted, and if there are significant changes in the labia minora within a short period of time, it is recommended that prompt medical attention be given to rule out any abnormalities, and that standardized treatments be actively administered if necessary.