If the growth is simply localized and painful, and if it becomes septic over time, it is caused by inflammation of the vulva, which can happen to anyone, due to cleanliness of the vulva or wearing unventilated underwear. If the vulva grows like a blister, it is often caused by herpes simplex virus infection, which can be transmitted through sexual contact, mainly because the body’s resistance and immunity is reduced to grow genital herpes. In addition, if the vaginal opening grows like a cauliflower, it is often clinically known as a condyloma acuminata, mainly due to a history of high-risk sex, which can be transmitted through sexual contact.