If there is an abnormal smell of fishy vaginal discharge, consider the infection of vaginitis. The fishy odor is typical of bacterial vaginitis and is strongly related to the infection of anaerobic bacteria and to the lack of hygiene during sexual life, which is also closely related. Therefore, bacterial vaginitis is generally more common in sexually active women. For these patients, the main thing is to pay attention to sexual hygiene and to cleanse the genital tract before and after sexual intercourse. Anti-anaerobic treatment, topical vaginal plugs, and topical lotions should be used. Bacterial vaginitis is also easily transmitted through sexual intercourse, so it is important to treat sexual partners if necessary.