The vulva is the entire external part of the female genitalia. It includes everything you can see on the outside of the body, from the soft mound of skin over the pubic bone down to the perineum. The vagina, by contrast, is the internal canal that leads to the uterus. Many people use “vagina” when they actually mean “vulva,” but they are two distinct parts of the body.
What the Vulva Includes
The vulva is not a single structure. It’s a collection of several parts that work together to protect the internal reproductive organs, provide sensation, and play a role in sexual response. The main components are the mons pubis, the labia majora (outer lips), the labia minora (inner lips), the clitoris, and a region called the vestibule that contains the openings to both the urethra and the vagina.
The mons pubis is the rounded, padded area of fatty tissue that sits over the pubic bone. Starting at puberty, pubic hair grows here. This cushion of tissue absorbs impact during sexual activity and protects the bone underneath. For some people, pressure on the mons during arousal creates pleasurable sensations because of the sensitive tissue beneath the surface.
The labia majora, or outer lips, are the two larger folds of skin that run vertically on either side of the vulva. They’re filled with fatty tissue and, during arousal, erectile tissue that becomes engorged with blood. Pubic hair grows on their outer surface. Their primary job is protective: they enclose and shield the more delicate structures inside.
The labia minora, or inner lips, sit just inside the outer lips. They’re thinner, hairless folds of skin that meet at the top of the vulva to form the clitoral hood. The inner lips frame the vestibule, the shallow space that contains the urethral opening (where urine exits) and the vaginal opening.
The Clitoris: More Than What’s Visible
The clitoris is the primary pleasure center of the vulva. Most people think of it as the small, sensitive nub at the top of the vulva, but that visible portion is only the glans clitoris. It’s partially or fully covered by the clitoral hood, which is formed where the inner lips join together.
The rest of the clitoris is internal. It’s a complex network of erectile tissue that branches out around the vaginal canal, extending several inches into the body. A 2023 histomorphometric study published in The Journal of Sexual Medicine found that more than 10,000 nerve fibers innervate the clitoris, significantly higher than the commonly cited figure of 8,000. This dense concentration of nerves is what makes the clitoris so responsive to touch and stimulation.
The Vestibule and Its Openings
The vestibule is the smooth area enclosed by the inner lips. It contains two important openings. The urethral opening sits just below the clitoris and is where urine leaves the body. Below that is the vaginal opening, also called the introitus, which is the entrance to the vaginal canal. Small glands within the vestibule produce moisture that helps with lubrication.
The vaginal opening marks the boundary between the vulva and the vagina. Everything outside that opening is part of the vulva. Everything inside, including the vaginal canal leading up to the cervix and uterus, is not. The anus, located further back, is also not part of the vulva.
Why Vulvas Look Different From Person to Person
There is no single “normal” appearance for a vulva. The size, shape, color, and symmetry of every component varies widely. One of the most common variations involves the labia minora: it’s perfectly typical for the inner lips to be asymmetrical, with one side longer or thicker than the other. In some people, the inner lips extend past the outer lips. In others, the outer lips fully contain them. Both are normal.
Color varies just as much. Labial skin is often darker than the surrounding skin of the thighs or abdomen. Some people have pink or purplish labia, while others have reddish or brown tones. A large cross-sectional study of 657 participants between the ages of 15 and 84 confirmed that labial size correlates with factors like body mass index and whether someone has delivered a baby vaginally, reinforcing that change over time is expected too.
The outer lips can sit flat against the pubic bone or curve outward. They can be close together or naturally separated. The clitoral hood may cover the glans completely, partially, or barely at all. None of these variations indicate a health problem.
What the Vulva Does
The vulva serves three overlapping purposes. First, it acts as a physical barrier. The fatty tissue of the mons pubis and the fleshy folds of the labia majora shield the internal reproductive organs from friction, impact, and infectious organisms. Second, the vulva is central to sexual sensation, largely because of the clitoris and the dense nerve supply throughout the labia and vestibule. Third, it provides access to the urinary and reproductive tracts through the vestibular openings while keeping those pathways protected when not in use.
The skin of the vulva is distinct from the skin elsewhere on the body. It’s thinner, more sensitive, and more susceptible to irritation from soaps, fragrances, and tight clothing. The vaginal canal (just inside the vulvar boundary) maintains an acidic environment with a pH of roughly 3.8 to 4.2, which discourages harmful bacteria. The vulvar skin itself doesn’t share that same acidity, which is one reason gentle, fragrance-free products are generally recommended for the external area.