Two types of tumefactions can be distinguished: diffuse, without an actually measurable tumour, and circumscribed, most often corresponding to benign tumours. Among diffuse tumefactions, the author diseases prolapse, inguinal hernias, hematomas, oedemas, vulvar varices, abcesses of the vulva and rare cases of elephantiasis. Each case is described and management is discussed. In a second section, where only large tumours can be termed tumescent, the author discusses cystic formations (serous, mucous and epidermal) and solid formations (fibromas, lipomas, acrochordons, neurofibromas, giant condylomas, voluminous endometriomas, and budding neoplastic mass). Excision of these tumours is always recommended as is pathologic surveillance.