Early childhood vulvovaginitis can be caused by a variety of factors and is the most common gynecologic disease in prepubertal women. Clinically, about 40% are non-specific vulvovaginitis (non-specific pathogens and mixed infections), 30% are specific vulvovaginitis (trichomonas, Candida, gonococcus, Haemophilus vaginalis, viruses, etc.), and 30% are aseptic vulvovaginitis (allergy, external irritation, moisture, friction, etc.). The most common vaginitis in young girls is bacterial vulvovaginitis, and the clinical manifestations of bacterial vulvovaginitis are described below. The main manifestations are yellow, yellow-green or green inflammatory discharge from the vulva and underwear, and in very few cases, bloody discharge, combined with vulvar flushing and even skin lesions. Some patients have no complaints of discomfort, while some have vulvar itching, pain, and pain during urination. However, if there is a bloody, foul-smelling discharge, the possibility of a foreign body in the vagina should be ruled out first.