The vulva is the external female genitalia. It includes the "lips" or folds of skin (labia), clitoris, and the openings to the urethra and vagina
Katz VL. Reproductive anatomy: Gross and microscopic, clinical correlations. In: Katz VL, Lentz GM, Lobo RA, Gershenson DM, eds. Comprehensive Gynecology. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 3.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.