Gardnerella is an anaerobic bacterium that can be transmitted through sexual intercourse and cause nonspecific, nonsuppurative vaginitis. A positive Gardnerella indicates that the patient has been infected with Gardnerella, resulting in hemophilic vaginitis, one of the more common bacterial vaginosis, most often seen in sexually active women. Haemophilus vaginitis is usually caused by a decrease in Lactobacillus in a woman’s vagina, which leads to a proliferation of other bacteria and microorganisms, including Gardnerella, which in turn produces bacterial vaginosis. Patients have mild symptoms and may experience increased vaginal discharge and sometimes a thin grayish, creamy yellow or soft green discharge with a fishy or ammonia odor. The vulva may be accompanied by dampness, redness, itching, burning and stinging sensations. A few patients may have erythema and red spots on the pubic area, which are manifestations of mucosal congestion caused by bacteria. Patients should choose drugs for treatment under the guidance of a doctor. Commonly used drugs include sulfonamides and tetracyclines, such as sulfathiazole, sulfadiazine, minocycline, doxycycline, etc. Oral metronidazole can also be used for treatment. During treatment, intercourse is prohibited because the male partner is often an asymptomatic carrier, and it is recommended that both partners undergo treatment at the same time to avoid secondary infection.