Due to the increase in body weight and the rapid rise in hormone levels during pregnancy, pregnant women are prone to vaginitis, and the risk of infection may also significantly increase. The three more common types of vaginitis include trichomoniasis, vulvovaginal candidiasis, and bacterial vaginosis. The presence of these three types of vaginitis can manifest as an increase in vaginal discharge accompanied by vulvar itching. Specific tests for vaginitis are needed based on the characteristics of the vaginal discharge and the results of the vaginitis tests, to determine the specific type of vaginitis and treat accordingly based on the type.