A positive vaginal discharge of hydrogen peroxide is considered as a possible bacterial vaginitis. Normally, there are a certain number of pathogenic bacteria in the vagina, but they maintain a certain balance and do not cause disease. If the balance of the vaginal flora is disturbed due to low immunity or prolonged use of antibacterial drugs or excessive vaginal douching, the dominant pathogenic bacteria may multiply and cause vaginal inflammation. Bacterial infections can be determined by testing for amines, which are produced when bacterial infections occur. Bacterial vaginitis can be transmitted through sexual intercourse and it is best to prohibit sexual intercourse during treatment.