The symptoms of trichomonal vaginitis and candidal vaginitis are different. In cases of candidal vaginitis, there is severe itching of the vulva, which can lead to congestion and edema of the vulva, difficulty sleeping at night, restlessness, and sometimes a burning pain of the vulva. In trichomonal vaginitis, although there is itching of the vulva, it is not very severe; the main symptom is a yellow, purulent vaginal discharge with a foul odor. Candidal vaginitis may occur due to local moist conditions of the vulva, long-term use of antibiotics, or in patients with diabetes, thus treatment involves addressing the underlying condition as well as the local infection. Most cases of trichomonal vaginitis are transmitted through sexual activity, so it is necessary for both partners to be treated simultaneously.