If the vaginal discharge has a fishy odor, it indicates a bacterial vaginitis infection. Bacterial vaginitis is mainly caused by anaerobic bacterial infection and is more common in women who are sexually active. In addition, it has a lot to do with the lack of hygiene and prevention of infection in general. The leucorrhea of these patients is usually foamy and more abundant. After sexual intercourse, the fishy odor becomes more pronounced and vaginal itching can occur. For these patients, medications are mainly used for the treatment of anaerobic bacteria, such as preparations like metronidazole, and other topical lotions. During the treatment period, intercourse is not allowed, and sexual intercourse can lead to further aggravation of the disease.