At present, the treatment of bacterial vaginitis is mainly based on compound metronidazole vaginal suppositories, tinidazole and bisoprolide suppositories, of which metronidazole has the strongest killing power against anaerobic bacteria, but the best suppositories vary from person to person, as detailed below: 1. Pregnant women: In case of pregnancy combined with bacterial vaginitis, this special group of people can choose clindamycin suppositories for treatment, because of which metronidazole is a prohibited drug during pregnancy, while If the patient is allergic to a certain drug, the allergenic drug should be avoided when choosing the drug. If the patient is allergic to metronidazole, other drugs need to be chosen for treatment; 3. General population: If the above two conditions do not exist, metronidazole suppositories are usually applied clinically to treat bacterial vaginitis because metronidazole has strong anti-anaerobic activity, anti-galactobacterial activity, and no anti-lactobacillus activity. No matter what drugs are used to treat bacterial vaginitis, it is difficult to cure it completely with drugs alone and there is even a possibility of recurrent attacks. In addition, if the disease is recurrent, the patient should consider that the vaginal micro-ecological environment is poor and severely dysfunctional, so she needs to strengthen her physical exercise.