Candidal vulvitis is a fungal infection, also known as a yeast infection, generally caused by improper vulvar care. Normally, the vaginal environment is acidic. An overly clean environment caused by excessive use of medications or douching can also lead to a candida infection. Additionally, if vulvar hygiene is neglected and becomes infected with candida, candidal vulvitis can occur. Furthermore, long-term use of high doses of anti-inflammatory drugs can also lead to a disruption of the normal flora, resulting in a candida infection. Also, patients with diabetes who do not control their blood sugar well can develop candidal vulvitis. Therefore, if there is a candida infection, it is essential to visit a hospital for relevant examinations. Treatment should then be based on the examination results using appropriate topical medications. Generally, candida infections can improve significantly after a week of treatment.