Clinically metronidazole gel is mostly used for the treatment of inflammatory papules, pustules and other diseases, but it has a certain therapeutic effect on certain types of vaginitis and other gynecological diseases. Because the drug components in metronidazole gel can inhibit bacterial metabolism, promote its death, while there is also a certain anti-anaerobic bacteria, commonly used in the treatment of dermatological diseases, such as inflammatory papules, pustules, rosacea erythema, etc., but also can be used for the treatment of trichomoniasis vaginitis, bacterial vaginosis, and inflammation of the uterine cervix due to anaerobic bacterial infections, and so on. Usually, the efficacy of the above gynecological diseases is limited by the application of metronidazole gel alone, so it is often necessary to take oral metronidazole treatment at the same time. In order to ensure that the efficacy of metronidazole gel to give full play to, patients need to use warm water to clean the perineum before using the drug, pregnant women and lactating women are prohibited. It is recommended to follow the doctor’s instructions to apply the metronidazole gel, do not self-medication.