Small bumps on the skin of the vulva may be caused by diseases such as folliculitis, genital herpes and condyloma acuminatum. 1. Folliculitis: usually do not pay attention to personal hygiene, local high temperature, humidity, easy to induce bacterial growth. Bacteria invade the hair follicles, resulting in inflammation of the hair follicles, and small bumps may appear locally, which may cause pain and itching. 2. Genital herpes: Genital herpes is a common clinical sexually transmitted disease, related to herpes simplex virus infection. It can lead to the appearance of red papules, papules, ulcers with pain and other manifestations in the genital and perineal areas. 3. Condyloma acuminatum: Condyloma acuminatum is a sexually transmitted disease, caused by human papilloma virus infection. It may cause the patient’s external genitalia or anus to appear around the superfluous organisms. It is recommended to pay attention to the care of the affected area, do not scratch the stimulus, to avoid leading to the aggravation of the symptoms. The specific need to go to the hospital dermatology department for examination, to understand the cause.