Vulvar inflammation typically appears as redness and swelling on the labia and surrounding skin, but it can look quite different depending on the cause. Some forms produce bright red, puffy tissue, while others create white patches, blisters, or thickened skin. Understanding these visual differences can help you recognize what’s happening and communicate clearly with a healthcare provider.
The Most Common Signs
The hallmark of vulvar inflammation is redness (also called erythema) on the labia, clitoral hood, or the skin surrounding the vaginal opening. The redness may be subtle, appearing as a slight pinkish flush, or intense and clearly defined. Swelling often accompanies it, making the tissue look puffy or feel tender to the touch.
Beyond redness and swelling, you may also notice sore, scaly, or rough patches on the skin. Some types of inflammation produce clear, fluid-filled blisters. Others cause the skin to crack or develop small tears called fissures, especially in the creases of the skin or near the vaginal opening. The appearance depends heavily on what’s causing the inflammation and how long it’s been going on.
How Different Causes Look Different
Yeast Infections
A vulvar yeast infection produces a moist, shiny red area that often has a soft, white, cottage-cheese-like coating. One of the most distinctive visual features is “satellite lesions,” which are small red bumps or tiny pustules scattered around the edges of the main red area. The surrounding skin tends to look raw and irritated. Thick white discharge is common but not always present.
Contact Dermatitis
When the vulva reacts to an irritant or allergen (soap, laundry detergent, a new product), the inflammation tends to appear as well-defined, symmetrical red patches with dry, scaly skin. The borders of the redness often line up with wherever the irritant touched the skin. Unlike a yeast infection, there’s no cottage-cheese discharge or satellite bumps, though the area may weep clear fluid if the reaction is severe.
Lichen Sclerosus
This chronic condition has a very distinct look that changes over time. In its early stages, you may notice only slight redness. As it progresses, pale, ivory-colored patches develop on the vulvar skin. These white areas can have a thin, crinkly texture sometimes described as looking like cellophane or parchment paper. The patches may merge into larger areas, and the skin can thicken into whitish-yellow, firm plaques.
Over time, lichen sclerosus can cause scarring that changes the vulva’s structure. The labia minora may shrink or fuse together, and scar tissue can partially or completely bury the clitoris. The vaginal opening may narrow. These architectural changes happen gradually and are a sign the condition has been active for a while without treatment.
Chronic Scratching (Lichen Simplex Chronicus)
When vulvar itching leads to repeated scratching or rubbing over weeks or months, the skin responds by thickening. The result is dry, scaly patches where the normal skin lines become exaggerated and deeply grooved. The affected areas may appear darker or lighter than the surrounding skin. This thickened, leathery texture is the body’s protective response to ongoing friction, and it creates its own itch, which fuels more scratching.
Blisters, Sores, and Ulcers
Some forms of vulvar inflammation produce blisters or open sores rather than just redness and swelling. Small, painful blisters filled with clear or straw-colored fluid are characteristic of genital herpes. These blisters tend to cluster together and eventually break open into shallow, tender ulcers before healing.
A single painless open sore with firm edges may be a sign of syphilis. A bump that quickly becomes an ulcer within a day or so could indicate chancroid, though this is far less common. Patches on the vulva that appear white, red, or brown and don’t resolve on their own can sometimes represent precancerous changes, particularly if they persist for weeks without an obvious cause.
What Discharge Tells You
The type of vaginal discharge present alongside vulvar inflammation is a useful clue. Normal discharge changes throughout the menstrual cycle, becoming clearer and stretchier around ovulation and slightly thicker and more yellow afterward. Healthy discharge doesn’t cause redness, swelling, or a strong odor.
When discharge changes in color, consistency, volume, or smell and the vulva is also red and swollen, it points toward an inflammatory infection like a yeast infection or trichomoniasis. By contrast, bacterial vaginosis produces a noticeable fishy odor and thin grayish discharge but typically doesn’t cause the visible redness and swelling you’d see with other infections. This distinction matters because the visual appearance of the vulva itself helps narrow down the cause.
How It Looks in Children
Vulvar inflammation in toddlers and young children looks similar to adults in some ways (redness, swelling, soreness) but tends to happen more easily and for different reasons. Before puberty, the vulvar skin is thinner because the body isn’t yet producing estrogen. There’s also no pubic hair or developed labial fat pads to protect the area, and the vaginal lining lacks the thick mucus barrier that helps adults resist infection.
The shorter distance between the anus and vagina in young children makes it easier for bacteria to migrate forward, especially with imperfect wiping. You may notice redness around the vulva, staining or discharge on underwear, and your child may complain of stinging when they urinate. Vaginal bleeding in a prepubertal child alongside inflammation warrants prompt evaluation. Once puberty begins, estrogen thickens the vaginal tissue and mucus, and these infections become much less frequent.
Patterns That Help Identify the Cause
A few visual patterns can help you and your provider sort out what’s happening:
- Symmetrical redness with sharp borders suggests contact dermatitis from an external irritant.
- Red, moist skin with scattered bumps at the edges points toward a yeast infection.
- White, papery patches that thin or scar the skin over time are typical of lichen sclerosus.
- Thickened, darkened skin with deep grooves usually indicates chronic scratching.
- Clustered blisters that break into shallow sores are characteristic of herpes.
- A single firm, painless sore may indicate syphilis.
Color changes on the vulva are particularly important to note. White patches can indicate lichen sclerosus, chronic friction, or precancerous changes. Red patches point toward active inflammation or infection. Brown patches may reflect normal pigmentation changes, but persistent brown or multicolored areas that weren’t there before deserve evaluation. The combination of what you see, how long it’s been there, and what symptoms accompany it all help determine the cause.