When there is a disease such as vaginitis, and the patient is in the menstrual period, you can continue to take metronidazole treatment under the guidance of the physician, which is conducive to the recovery of the condition. Metronidazole tablets can be used to treat pelvic inflammatory disease, endometritis, bacterial vaginitis caused by anaerobic bacterial infection, etc. Taking metronidazole usually does not affect menstruation. If there are gynecological inflammatory diseases, in the menstrual period patients can be under the guidance of the physician, in accordance with the standardized dose and course of treatment, continue to take metronidazole treatment, conducive to the recovery of the condition. It should be noted that after taking metronidazole may appear gastrointestinal discomfort and other conditions, so it is best to take after meals to reduce adverse reactions. It should be noted that this drug is contraindicated in patients with active central nervous system diseases, blood disorders and pregnant and lactating women. Patients can take metronidazole tablets reasonably under the guidance of the doctor during menstruation, not blindly take the drug on their own. At the same time, during menstruation, we should pay attention to the cleanliness and dryness of the vulva, so as not to aggravate the infection, and exercise appropriately to improve the body’s immunity, which will help the recovery of the disease.