Metronidazole can be used to treat gynecological infections because most gynecological infections are caused by anaerobic infections, and metronidazole is a medication for anaerobic infections. Metronidazole tablets can not be used to treat the following conditions: 1, gonococcal infections with metronidazole treatment did not work. 2, candida infections with metronidazole tablets treatment also did not work. In addition to the use of metronidazole tablets in the process of treatment should pay attention to the following points: 1, to use the drug after meals, because metronidazole may cause gastrointestinal tract irritation. 2, in the period of time during the medication can not drink alcohol. 3, be careful to metronidazole can not be taken for more than a week.