Long-term bacterial vaginitis can lead to infertility. If bacterial vaginitis occurs, a large number of bacteria proliferate in the vagina. When sperm enter, they may quickly die off. Even if they do not die, their quality is greatly reduced. Vaginitis results in a significant increase in vaginal discharge. The secretions contain a large number of white blood cells, which can hinder the survival of sperm, thus potentially causing infertility. Therefore, women must pay attention to personal hygiene. Once the inflammation of bacterial vaginitis becomes severe, it can spread to the uterine cavity and cause more serious diseases such as adnexitis and pelvic inflammatory disease. If not treated promptly, these can lead to infertility. It is important to develop good hygiene habits regularly.