The labia majora is too large due to several reasons: First, it may be due to trauma to the female vulva, resulting in hematoma, which increases the size of the labia. Second, it may be due to abscesses or cysts in the vulvar vestibular glands of women, which cause the labia to become larger. Thirdly, it may be due to the fast development of female labia, some women have large labia on both sides and some women have large labia on one side, especially the labia minora, which may cause friction when walking and pain in the pubic area, which is a normal physiological phenomenon and can be treated without special treatment. If the labia majora is too large to affect normal life, you can go to the hospital to remove the excess part, in addition, it may also be caused by vestibular adenitis or vulvodynia, etc. Patients can go to the hospital for examination to confirm the diagnosis of the condition and then treat the symptoms.