Bacterial vaginal inflammation is caused by dysbiosis of the vaginal flora of women. It is not clear what causes dysbiosis of the vaginal flora. 2. repeated vaginal douching: vaginal douching and frequent sex have the same pathogenic principles, both leading to vaginal environment and dysbiosis. 3. bad lifestyle habits: such as regular late nights, bad temper, or irregular diet leading to decreased fitness. 4. drug factors: taking immunosuppressants, antibiotics, etc. leads to decreased immunity in the body, resulting in dysbiosis of the vaginal flora and causing inflammation. 5. Other causes: vaginal dysbiosis may be related to many factors such as having intercourse during menstruation or unhygienic intercourse.