The vulva is made up of the female genital parts that are outside the body. 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: Lentz GM, Lobo RA, Gershenson DM, Katz VL. eds. Comprehensive Gynecology. 6th ed. Philadelphia, PA: Elsevier Mosby; 2012:chap 3.