The main causes of vulvar pimples are the following: 1, folliculitis, if you usually always wear chemical fiber impermeable underwear, long-term use of pads cause vulvar dampness, the skin of the labia is subject to a large amount of urine, feces, menstrual blood can occur folliculitis, obese women are also prone to vulvar folliculitis, women usually wear cotton underwear, do not frequently use impermeable sanitary napkins and pads, pay attention to cleaning If there is no infection, no pain, no fever symptoms temporarily do not need treatment. 2, human papillomavirus infection is also known as condyloma acuminata, is caused by HPV virus infection, need to be treated. 3, vestibular gland cyst, the exit is located in the inner side of the labia minora, bacteria can easily invade and reproduce to cause inflammation, need timely treatment.