What is the Vulva?
The vulva is the external female genitalia, comprising the mons pubis, labia majora, labia minora, clitoris, vestibule (including the vestibular bulbs), and the external opening of the vagina and urethra. 1, 2
Anatomical Components
The vulva consists of several distinct structures that extend inferiorly from the pubic arch:
- Mons pubis: The fatty tissue over the pubic bone
- Labia majora: The outer, hair-bearing folds
- Labia minora: The inner, hairless folds
- Clitoris: Including the glans, body, and crura (the erectile structure most critical to female sexual arousal and orgasm)
- Vestibule: The area between the labia minora containing:
- Vestibular bulbs (erectile tissue)
- Urethral opening
- Vaginal opening
- Bartholin's gland openings
- Perineum: The area between the vaginal opening and anus 1, 2, 3
Important Clinical Context
Embryological Origin
The vulvar structures arise from the same embryologic tissues as male external genitalia: the phallus, urogenital folds, urogenital sinus, and labioscrotal swellings 2
Anatomical Confusion
A critical caveat: Significant disagreement exists among international anatomical and clinical societies regarding which precise structures constitute the vulva 4. Some sources include or exclude the clitoris, perineum, or vaginal opening, leading to inconsistencies in medical literature and communication 4, 5
Clinical Significance
Understanding vulvar anatomy is essential for:
- Diagnosing vulvar pathology (including vulvar cancer, which predominantly affects the labia majora and is most commonly squamous cell carcinoma) 6
- Addressing women's sexual health concerns 1, 2
- Proper clinical examination and patient education 7
Medical Education Gap
Medical textbooks provide scanty and often inaccurate information about vulvar morphology, with most failing to provide measurements for vulvar structures 5. This knowledge gap can affect clinical practice and patient counseling.