Itchy pimples on the genitals of girls may be caused by folliculitis, condyloma acuminatum or genital herpes. 1. Folliculitis: purulent infection can appear at the mouth of the hair follicles in the perineum, initially red follicular papules, and then pustules can appear in the center, and a red halo can be seen around them, and sometimes itchy manifestations can be seen. 2. Condyloma acuminatum: After having unclean sex and being infected with the human papilloma virus, women will have scattered or single red papules in the genital area, which are soft in texture, and then can increase in size and become warts, and a few patients will have itching and foreign body sensation. 3. Genital herpes: caused by herpes simplex virus infection of the genital mucosa, the genital area will appear scattered small blisters, can break into ulcers, can be scabbed and self healing. Women should pay attention to maintain perineal hygiene and cleanliness, avoid unclean sex, have localized skin lesions discomfort manifestation, need to consult a doctor in a timely manner, identify the cause of the disease, follow the doctor’s instructions for treatment.