The pain below the girl may be due to the following reasons: the first case, it may be due to cycling or wearing tight underwear, repeated friction and caused by the vulvar skin mucosa abrasion, and pain; the second case, when women do not pay attention to the cleanliness of the vulva, resulting in vulvodynia, folliculitis, vulvar ulceration, etc., will also appear vulvar pain; the third case, when women suffer from urinary tract infection In the third case, women suffering from urinary tract infection may also experience frequent, urgent and painful urination, or hemorrhoids, which can also lead to localized pain in the vulva. When a girl is found to have vulvar pain, she can wash her vulva with warm water first. If the pain cannot be relieved after washing, it is best to check whether there is inflammation or pain caused by mucosal abrasion or rupture under the guidance of a doctor, so that the appropriate symptomatic treatment can be given, and do not eat spicy and irritating food.