Vulvitis is an inflammation of the vulva caused by various bacteria and pathogens, or adverse irritations such as allergies. It can be due to a local skin infection, or it can be a spread of infection from conditions such as vaginitis, urethritis, or perianal diseases, and it can even be a complication of systemic diseases. Symptoms of vulvitis may include swelling, redness, increased skin temperature, ulceration, pain, and itching in the perineal area. If the condition persists, the skin in the affected area may thicken and become rough, resembling lichenification. Severe cases may lead to labial adhesion or labial abscess formation.