Bacterial vaginosis is caused by a lack of normal lactobacilli in the vagina, which causes the proliferation of pathogenic bacteria. The most common causes are multiple sexual partners or prolonged vaginal douching and frequent sexual intercourse. To cure bacterial vaginosis completely, first of all, you should change your bad habits by washing your vulva with warm water every night and not douching your vagina. Bacterial culture of the leukorrhea plus drug sensitivity test can be done and according to the results of drug sensitivity, the pathogenic bacteria will be killed soon. After using antibiotics, you can apply lactobacillus in the vagina. As long as lactobacillus multiply, the pathogenic bacteria will be suppressed and the bacterial vaginitis will be cured. During the treatment of vaginitis, you must not have sex to avoid cross-infection.