Metronidazole tablets can treat gynecological diseases and can be used to treat vaginal inflammation, cervical inflammation or pelvic inflammatory disease caused by various anaerobic bacterial infections or trichomonas infections. In the case of pelvic inflammatory disease caused by anaerobic bacterial infections, oral medication is the main treatment and should be taken orally for about 7 days. In the case of vaginal or cervical inflammation, topical vaginal medication is used in conjunction with oral medication. For vaginal use, the main treatment is metronidazole vaginal tablets inserted into the vagina. If the patient does not have metronidazole vaginal tablets, they can also be treated with metronidazole tablets inserted into the vagina. Although the use of metronidazole vaginal tablets during pregnancy for the treatment of bacterial or trichomoniasis inflammation does not have a significant effect on embryonic development. However, from a pharmacological point of view, metronidazole vaginal tablets are contraindicated during pregnancy or lactation, so they are not recommended for patients, and metronidazole tablets should never be taken orally during pregnancy.