Lymphangioma circumscriptum is a rare, benign disorder of no specific etiology involving the lymphatic channels in the deep dermal and subcutaneous layers. Lymphangioma circumscriptum can occur as either a congenital abnormality or as acquired damage to previously normal lymphatic channels. It can occur at any site in the body, especially the thigh, buttock, upper arm, axilla, and tongue, but rarely the vulva. Surgical management and laser therapy are usually performed, but other management strategies have been suggested because of frequent recurrence and cosmetic problems. We report a 64-year-old female patient who had lymphangioma circumscriptum of the vulva and who was successfully treated with an UltraPulse CO2 laser. (Korean J Dermatol 2009;47(3):358∼360)