Analysis of Ameliorative Effects of Oral Probiotics on Bacterial Vaginosis

Inclusion Criteria: * Informed Consent Form. * Subjects with bacterial vaginosis and Nugent score as 4-10 * Subjects in age of 20-55 years old * Regularly menstruating premenopausal women (normal menstrual function (Eumenorrhoea) shall mean regular menstrual bleeding pattern every 28 plus/minus 10 days) * Forbidden sexual behavior was required 72 hours before all visits Exclusion Criteria: * Subjects are pregnant, lactating or planning to become pregnant. * Allergy to test products (raw material components included: Anhydrous glucose, Magnesium stearate, Fructooligosaccharides, Microcrystalline cellulose, Lactobacillus, etc.) * Bleeding from genital tract of unknown aetiology. * Congenital and acquired immunodeficiencies. * Diabetes * Mental illness * Malignant tumor * Application of NuvaRing hormonal contraceptive vaginal ring * Application of mechanical contraceptives, such as: diaphragms, intrauterine contraceptive insert, except condom * Application of hormonal preparations, such as: Vagifem, Ovestin and vaginal estrogens in reproductive period. * Mycotic vaginitis * Antibiotic(unless indicated by PI) and steroids therapy during this trial. * Use of oral or vaginal probiotic products (sachet, capsule, or tablet) four weeks before V1. * Participation in another clinical study.