For urinary tract infections in women, metronidazole is not chosen as the drug of choice for anti-infective treatment. Metronidazole can be applied for the treatment of trichomonas and also for anaerobic bacteria. However, urinary tract infections are often due to gram-negative bacilli and to a lesser extent to pathogens such as mycoplasma, chlamydia, or gonococcus. Therefore, fluoroquinolone antibiotics, or cephalosporin antibiotics such as levofloxacin hydrochloride, ciprofloxacin, cefixime, or cefuroxime tablets, are recommended for treatment. If the presence of trichomonas infection or anaerobic infection is diagnosed, metronidazole tablets may be chosen for treatment, but are not routinely preferred for treatment. It is recommended that a culture test of the clean middle urine be performed at the hospital to identify the specific pathogenic bacteria and select the medication for treatment. If necessary, drug sensitivity testing should be done to avoid the presence of bacterial resistance. The use of conventional drugs is ineffective, and during the treatment period, it is necessary to drink more water and urinate more, so as to make the urinary tract infection recover as soon as possible.